encontramos: a)1 b)2 c)3 d)4

⇔ Alternativa correta Letra A
[tex]\large \boxed{\begin{array}{lr} {\frac{(10^{2})^{3} }{(10^{3})^{2} } =} \\ \\ {\frac{10^{2\times3} }{10^{3\times2} } =}\\\\{\frac{10^{6} }{10^{6} } =}\\\\{10^{6} \div10^{6}= }\\ \\ \boxed{\red{ \ \ 1 \ \ }} \Leftrightarrow {\rm \ Resposta} \\ \end{array}}[/tex]