Which could be the next step in simplifying this expression?
24 + (6 + 29)
a. 24 • 6 + 24 • 29 (use the distributive property)
b. 24 • 6 + 29 (use the associative property)
c. (24 + 6) + 29 (use the associative property)
d. 24 + 6 • 29 (use the commutative property)