Answer:
C - Quadrant III
Explanation:
This is because if you look at a graph, you can first sketch out each quadrant.
Quadrant I is typically the quadrant in which students are usually in; it's where both numbers are positive. On the unit circle, it'd the degrees of 0-90.
Quadrant II is the one to the left of Quadrant I - it's where the x's are typically negative and the y's are positive. On the unit circle, it'd be 90-180.
Quadrant III is where both numbers are negative, such as the point provided. On the unit circle, this is typically 180-270.
Quadrant IV is the same as Quadrant II, except the x is positive and the y is negative. This is where it's 270-360 degrees on the unit circle.
With the provided definitions of each quadrant, it can be determined that the point -3, -7 is in quadrant III.
Hope this helps!