WILL GIVE BRAINLIEST George invests a total of $5000 into various funds on the day his daughter is born. George’s investment balance can be estimated by the function f(t)=5000log100(t+107)−75, where t is time in years since the investment was made. George checks on the investment every 5 years until his daughter turns 20, at which point he presents the investment to his daughter.

Part A: During which time period did the account have the largest average rate of change? Assume t=0 on the day his daughter is born.

Part B: Interpret your result in Part A. Did George make good investments?

Select one answer for Part A, and select one answer that is completely correct for Part B. Answer choices below,

A: [15,20]
B: George made bad investment decisions. He lost money over time.
A: [10,15]
A: [0,5]
B: George made moderately successful investment decisions. The investment balance grew over time, but at an increasingly slow rate.
B: George made disappointing investment decisions. He did not make any money because the investment balance remained the same over each time period.
B: George made excellent investment decisions. The investment balance grew more and more rapidly over time.
A: [5,10]