I believe it is rooms. but I won't be surprised if I'm wrong
False. An eyewitness account, is a primary source. A tertiary source is an index or textual consolidation of primary and secondary sources. :)
The answer is A, or By underlining or italicizing it. Doing so draws eye-coordinated attention and emits a connotation that the word is significant to something more overlying than what is said.
That sentence is an example of parallel structure.
When there is repetition of a specific grammatical form in a sentence, parallelism or a parallel structure is produced. This occurs when you mantain the same pattern for every compared word or idea in your construction. This makes the idea easier to follow by the reader.