What is the voice of the following sentence?

many discoveries have been made recently in medicine.

a. passive
b. active

20 points plus brainlest answer if right.joe nesbo, a travelling salesman, was staying at a hotel for business. he was having a dinner meeting that night, so he decided to take a nap in the middle of the afternoon. he was awakened by a knock at the door, and then a man walked in. “oh my, i’m terribly sorry, this isn’t my room. , pardon the intrusion.” the man calmly backed out and left. nesbo got up and locked the door – something he forgot to do before his nap – and lay back down on the bed. but then he shot up in bed and called the lobby to tell them there was a burglar on the prowl. what made nesbo think that?

What word or phrase is modified by the prepositional phrase in the sentence below? marisol's puppy likes napping under the couch because it is warm and cozy

Maria is writing a persuasive essay for her english class. she asks marshall if it is important to use rhetorical appeals in her essay.which reasons could marshall give in favor of using rhetorical appeals