I think is C. 1 client and 24 hours
because
12÷3=4
4÷4=1
6×4=24
ratio
client: hours
1 : 4
The answer is D. Think of the Pythagorean Theorem which states that a^2 + b^2 = c^2. The Pythagorean Identities used in trigonometry are the angle version which can be used to simplify expressions.
