Final answer:
The down payment of $12,000 is 10% of the purchase price ($120,000) of the studio apartment.
Step-by-step explanation:
The question relates to finding out what percentage the down payment is of the purchase price of a studio apartment. If investors buy a studio apartment for $120,000 and make a down payment of $12,000, to determine the percentage we divide the down payment by the purchase price and then multiply by 100 to get the percentage.
$12,000 ÷ $120,000 = 0.1
0.1 × 100 = 10%
So, the down payment of $12,000 is 10% of the purchase price of the apartment. Hence, the correct answer to the question is A) 10%.