Answer:
D.)
Explanation:
[tex]A=[/tex]πr²
[tex]A=[/tex]π[tex](4x^{7} y^{3} )^{2}[/tex]
According to the Power Rule you raise coefficients to the power and multiply the exponents
[tex]A=([/tex]π[tex])(16x^{14} y^{6} )[/tex]
[tex]A=16[/tex]π[tex]x^{14}y^{6}[/tex]
