Select the equivalent expression. \left(a^{-2}\cdot 8^{7}\right)^{2}=?(a
−2
⋅8
7
)
2
=?left parenthesis, a, start superscript, minus, 2, end superscript, dot, 8, start superscript, 7, end superscript, right parenthesis, squared, equals, question mark
Choose 1
Choose 1

(Choice A)
A
8^98
9
8, start superscript, 9, end superscript

(Choice B)
B
a^{-4}\cdot 8^{14}a
−4
⋅8
14
a, start superscript, minus, 4, end superscript, dot, 8, start superscript, 14, end superscript

(Choice C)
C
(8a)^{10}(8a)
10
left parenthesis, 8, a, right parenthesis, start superscript, 10, end superscript