Answer:
C & D
Step-by-step explanation:
[tex]5^{12} * 5^{8} = 5^{12+8} = 5^{20}\\\\(5^{3}*5^{2})^{4} = (5^{3+2})^{4} =(5^{5})^{4} = 5^{5*4}=5^{20}\\\\(5^{5})^{4}=5^{5*4}=5^{20}[/tex]
