Answer:
B.

Explanation:
We have been given an image of a circle. We are asked to choose the major arc from our given choices.
Let us check our given choices one by one.
A.

We can see that
is not an arc it is radius of the given circle. Therefore, option A is not a correct choice.
B.

We can see that arc PSQ includes arc PSR and RQ. Since PSR is semicircle of our given circle, therefore, arc PSQ is major arc of our given circle.
C.

We can see that measure of PQ is less than 180 degrees, therefore, option C is not a correct choice.