16. What is half of $4^{2022}$ ?
A $4^{1011}$
B $2^{4044}$
C $4^{2021}$
D $2^{4043}$
E $2^{1011}$
16. D Note that $4^{2022}=\left(2^{2}\right)^{2022}=2^{4044}$. Therefore half of $4^{2022}$ is $2^{4044} \div 2=2^{4043}$.