Help me please with this question

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4