Which sentence contains parallel structure? A be
O Jonah has two ultimate goalsbecoming a published columnist and writing a book.
O Jonah has two ultimate goals: becoming a published columnist and to write a book.
O Jonah's two ultimate goals are to become a published columnist and writing a book.
O Jonah's two ultimate goals are becoming a published columnist and to write a book.

O Jonah has two ultimate goals: becoming a published columnist and writing a book.

Explanation:

Parallel structure in any given sentence is the use of the same grammatical structure or construction in the sentence. This repetition of the grammatical form in a single sentence allows for better readability and understanding, also making it easier to be framed.

In the given sentence, parallelism occurs in the use of the "verb+ing" in the words "becoming" and "writing". It presents a smooth flow of words and the sentence construction makes for perfect rhythm. Thus, the correct answer is the first option.