Answer:
Using reliable references and citing multiple sources can help you avoid plagiarism and ensure quality.
Explanation:
The technique of parallelism, also referred to as parallel structure or parallel construction, is a correspondence between multiple sentences that are alike and share an identical grammatical structure.
In this case, we have two sentences, one dependent on the other. In the first sentence (using reliable references and citing multiple sources), which has the grammatical function of subject, we are given the verb "using", and this indicates that the following verb must be conjugated in -ing form.
In the second sentence (can help you avoid plagiarism and ensure quality), which has the grammatical function of predicate, we are given the verb "avoid", which indicates that the following verb must be conjugated in infinitive form.
