Answer:
A
Step-by-step explanation:
[tex]f(x) = y[/tex] (output)
[tex]y = 16\\y = 2^x\\2^x = 16\\2^x = 2^4\\x = 4[/tex]
x = number of rounds
y = number of points
In the 4th round, 16 points will be rewarded.
