Ron is a car salesman. He earns a monthly wage of $1,000 plus a commission equal to 3% of the total price of the cars he sells. If p is the price of the cars Ron sells in a month, which equation represents Ron's total monthly income (r)?

Ar × 0.03p = 1,000

Br = 0.03p × 1,000

Cr = 0.03p + 1,000

Dr + 1,000 = 0.03p