The sentence that is written correctly with parallel structure is: In order to complete your application, you must schedule an interview, get three recommendation letters, and pay the $50 application fee. The correct answer is option B. What makes this sentence have a parallel structure is that, the verbs used are in the same grammatical form.
The answer is D, Soft-heartedness versus Soft-headedness
It means fully conscious, or aware of what’s around them.