Final answer:
The professional athlete will make $66 million at the end of 5 years by multiplying the monthly earning of $1.1 million by 60 months.
Step-by-step explanation:
To calculate the total amount of money the professional athlete will make at the end of 5 years, we need to multiply their monthly earnings by the number of months in 5 years (60 months). Assuming the contract pays the athlete $1.1 \times 10^6 per month, the calculation would be:
$1.1 \times 10^6 \times 60 = $66 \times 10^6.
Therefore, option A.$66,000 is incorrect because the correct amount should be in millions, not thousands. The correct amount the athlete will make at the end of 5 years is $66 million.