The table shows the price for different numbers of board games: Number of Board Games Price (in dollars)
2 7
4 14
5 17.50
9 31.50

Does this table of numbers represent a proportional relationship? (5 points)

a
Yes, because 3.5 times the price is the number of board games

b
Yes, because the price is 3.5 times the number of board games

c
No, because the price of 4 board games should be $9 and not $14

d
No, because the price of 9 board games should be $40.50 and not $31.50