Answer:
C) 1,048,576 clones
Explanation:
An army of clone warriors is quadrupling every year.
This means that the amount of clone warriots after t years is given by:

Started with only one warrior:
This means that
, so:

How many clones will there be in a decade?
A decade is 10 years, so this is A(10).

The correct answer is given by option C.