Answer:
Eliana Rodriguez, who teaches biology, is my favorite teacher because she gives engaging lectures.
Step-by-step explanation:
Already you can ex out the bottom two, as they don't place a comma after Eliana Rodriguez's name. Next, you can ex out the top one because there should be a comma between biology and is my because you are describing your teacher.
Use a common test-taking strategy to remove the answers you know are wrong, then say it in your head so you can figure out to the best of your ability which is right.
Good luck!