Answer:
c. The students became quiet when the principal walked into the room.
Explanation:
A complex sentence is a sentence that has one independent clause and at least one dependent clause. An independent clause is a full sentence but a dependent clause needs an independent clause to be taken as a full sentence. Also, in a complex sentence, the dependent clause has to start with a subordinating conjunction.
Among the given sentences, sentence c is a complex sentence as it contains the subordinating conjunction "when". It also has one independent clause with a dependent clause.
Thus, the correct answer is option c.
Answer:
The quality of being original or novel.The capacity to think independently or be inventive.Something original.
My teacher divides the time part for explanation and another for activities such as short quizzes or competitions, anything that may be fun and not boring.