Matt is selling tickets for the football game next week. His daily ticket sales over the past six days have been 37, 29, 37, 50, 45, and 38 tickets. His goal is to sell an average number of 40 tickets per day. To achieve Matt’s goal, how many tickets must he sell on the final day of the week?
A: 38 tickets
B: 44 tickets
C: 236 tickets
D: 280 tickets