Mia has a new job and earns a salary of $65,000. Kalonie has a new job and earns $56,000. Mia will receive a salary increase of $2,100 per year, and Kalonie will receive a salary increase of $1,200 per year. Which equation can be used to find x, the number of years it will take Kalonie to earn the same salary as Mia? Group of answer choices

A. 2,100x + 56,000= 1,200x + 65,000

B. 1,200 + 56,000x = 2,100 + 65,000x

C. 1,200 + 56,000x = 2,100x + 65,000x

D. 2,100x + 65,000= 1,200x + 56,000

explain please