Elena rodriguez who teaches biology is my favorite teacher because she gives engaging lectures. which is the best was to revise this sentence

Yes it's the second one because (who teaches biology) can be in the sentence or not and it will still have the same meaning.

Ibelieve the correct answer is  d. they bound logs together and built a raft. enkidu steered it down the great river. gilgamesh carried humbaba's head.we know that gilgamesh was triumphant in this battle because he is carrying his enemy's head. he defeated humbaba, and then decapitated him to have his head as a trophy, or to show it to everyone that he managed to defeat his enemy.