Which of these sentences uses parallel structure

d

Explanation:

D) Before starting college, Jake learned how to speak Spanish and traveled across South America.

Explanation: parallelism or parallel structure is a literary device that consists in the repetition of the grammatical structure of different words or phrases in a sentence or paragraph, in order to emphasize an idea or to create an impact in the audience. From the given options, the sentence that uses parallel structure, is the corresponding to option D, because it uses the same tense in the verbs "learned" and "traveled."

technical documents should be clear and precise. basically, clarity is the key element in a successful technical document.

the development of trade during the middle age increased to the change given in the agriculture, which gave money, industry and markets a bigger importance in economy. the agriculture production was more than the consumption, which meant the creation of wider markets out of the areas. besides, with the end of multiple wars, the population increased and new trade routes were created.