Hey there!
How are you?
I'm here to help!
The answer to this question is simple, but since you seem to have difficulty with it, I'll help you out here.
A right angle looks like this: |_ Perfect corners.
An obtuse angle looks like this: _/ Sort of like the vertex on a stop sign
An acute angle looks like this: < Like a Pinched angle
And finally, one that doesn't matter in this case, a Straight angle is just a straight line like this: __
So we account for these things for Part A and notice that B is the only one with < & _/ Angles.
So the answer to part A is C. shape B.
Now we learn about Parallel and Perpendicular. Parallel means two lines that never touch, and are line up with each other like this: ║
However, Perpendicular is the opposite. Perpendicular is when lines cross with each other like this: ⊥
Using this knowledge, we can determine the shape isn't a triangle, because a triangle does not have parallel lines.
We can also determine C has no Perpendicular lines.
And finally, D has no perpendicular lines.
However, B does have Perpendicular lines and Parallel lines!
So your answer for part B is also C. shape B.
I really hope this helped and I hope I'm not too late answering.
Your friend in answering,
~Steve