Which situation is represented by the equation?

4x + 30 = 2x + 60
A) Jill has $30 and Maddie has $60. Jill saves $2 per week and Maddie saves $4 per week. How long will it be before Jill has more money than Maddie?
B) Jill has $30 and Maddie has $60. Jill saves $4 per week and Maddie saves $2 per week. How long will it be before Jill has more money than Maddie?
C) Jill has $30 and Maddie has $60. Jill saves $2 per week and Maddie saves $4 per week. How long will it be before Jake and Mike have the same amount of money?
D) Jill has $30 and Maddie has $60. Jill saves $4 per week and Maddie saves $2 per week. How long will it be before Jill and Maddie have the same amount of money?