Answer:
Option (B).
Step-by-step explanation:
Here there are two parallel lines c and d cuts by a transversal p.
The angles are formed as shown in diagram.
Here,

So, the option (B) is correct.
I’ve provided both the answer and explanation below! Hope this helps :)
A. 13 classes completed worth 3 credits.
B is considered as a variable as in like a+b= c