A family membership at a swimming pool costs $50 per person. The equation y = 50x + 100 gives the total cost of the family membership where y is the total cost of the family membership and x is the number of family members. Which statement is true? A. There is no initial cost to join the swimming pool; however, families do have to pay 50 per family member.

B. There is an initial cost of $100 to join the swimming pool and a $50 charge per family member.

C. There is an initial cost of $50 to join the swimming pool and a $100 charge per family member.

D. There is no initial cost to join the swimming pool; however, families do have to pay $150 per family member.