Answer:
B. She was given $60 for her birthday.
Explanation:
The equation that models this situation is:
where y is the amount of money in the account and x is the number of deposits.
Here 60 is constant and 75x is variable with respect to x or number of deposits.
Means she was given $60 for her birthday. And deposits the same amount $75 each month.
So, option B is correct.