D, miles. Pounds would be weight. Circumference is the distance around a circle. Area is the amount of square units in an area.
Answer: either B. or C. ( at least i tried. )
Theorem: If two chords intersect within a circle, then the product of the lengths of the segments (parts) of one chord is equal to the product of the lengths of the segments of the other chord.
In your case,

If AE = 6, EB = 3, and DE = 2, then

Answer: correct choice is D.
N = 9 - 2
N = 7
Proof = 7 + 2 = 9
N = 9
So,letter N is 9 (nine)
I hope my answer is helping !