When you compare a source like Wikipedia to two other authoritative academic sources, you are checking the reliability of your sources
When you compare authoritative academic sources with sites like Wikipedia you are evaluating if you can trust the information and facts in the sources, you are looking if it is true information or just opinion, checking the reliability of the sources.
The sentence that contains a faulty parallel structure is the sentence, "He exercised while I watch television." The wrong part of this sentence is that, the first verb uses a past form, and then the next verb uses the present form. It is using the conjunction "while" meaning both verbs or action happen at the same time. Therefore, the verbs should either be both past form or both present form.
1. Always deliver what you promise.
2. Each pronoun should agree with their antecedent.
3. Between you and I, case is important.
4. Verbs have to agree with their subjects.
5. Don't be a person whom people realize confuses "who" and "whom."
6. Never use no double negatives.
7. A writer should not shift their point of view.
8. When writing, participle must not be dangled. Don't do it even if it's hard not to.
9. Join clauses good, like a conjunction should.
10. Don't write run-on sentences, you need to punctuate them properly.
11. About sentence fragments. Don't. Unless it's for effect.
12. In letter themes and reports use commas to separate items in a series as well as phrases and clauses when required.
13. Don't, use commas, that aren't necessary.
14. Its important to use apostriphe's in the right place's.
15. Don't abbrev. unless approved by the Associated Press Stylebook.
16. Check to see you any words out.
17. Try to never split infinitives.
18. Avoid using a preposition to end a sentence with. That's a practice up with which some readers will not put.
19. Parallel structure will help you in writing more effective sentences to express yourself more gracefully and its pleasing to your editor.
20. In my own personal opinion I think that an author when he is writing should not get into the habit of making use of too many unnecessary words that he does not really need to use.
21. Last but not least, lay off the cliches and mixed metaphors. They might kindle a flood if anger in your editor.
Yes, that's twenty one, but they all needed to be listed to properly answer this question. The errors in the sentences are all purposeful and intended.
I do hope this helped you. :)
The question requires choices. Then, by showing the words, it'll be possible for the question to be answerable.