Answer :
Parallel structure is referred to as a situation in English grammar where a grammatical form or structure is repeated within a sentence. Each grammatical form, being similar in structure, thus creates a parallel structure. Parallel structure helps in establishing balance and flow in a sentence. The correct answer with parallel structure is :
The concert begins at nine; it ends at midnight.
You start with the title, put n.d. (which is no date) and paragraph number.
wait nvm. ignore my answer.
Prep phrases in the beginning of a sentence are separated from the independent clause by a comma.
after a long civil war that devastated his native nigeria (prep), the main character in civil peace rebuilds his life.
internal clauses will also be separated with commas when they do not flow logically with the rest of the independent clause.
elie wiesel (ind. clause), recalling his suffering in the nazi concentration camps (int. clause), often spoke out against similar oppression (continued ind. clause).