The example of a complex sentence that answers your question is: Processed foods should be avoided because they may cause significant health issues. Therefore, option C is the right choice.
A complex sentence consists of an independent clause and one or more dependent clauses. Unlike dependent clauses, independent clauses can function as standalone sentences since they express complete ideas. This is illustrated in the examples below.
a) Processed foods should be avoided (independent clause)
b) *Because they may cause serious health problems (dependent clause)
Thomas Paine's work, Common Sense, was significant as it encouraged American colonists to strive for independence.
This pamphlet, published in 1776, coincided with the formative stages of the American Revolutionary War. Although the first battle for independence occurred in 1775, certain colonists were still ambivalent, desiring some form of reconciliation with Britain due to a lack of intense animosity toward the monarchy.
However, in 1776, the pamphlet articulated arguments against monarchy as a governing model, advocating for the freedom of the American colonies. Thus, the publication of Common Sense in 1776 fueled the desire for independence, swaying the undecided colonies towards breaking away. Independence was ultimately declared in July 1776, merely six months following the pamphlet's release.
"The mechanic was told by her, 'The car continues to overheat,'" she said, "continues to overheat".
It’s unclear which part was emphasized, and the wording didn’t clarify much, but this should be accurate