If CA is the quantity of reactants initially present, the quantity left after ‘n’ half periods will be equal to__________________?

If CA is the quantity of reactants initially present, the quantity left after ‘n’ half periods will be equal to__________________?

A. (CA/2)n
B. (½)n CA (Correct)
C. (CA/2)1/n
D. (CA)1/2n