Chester's elite product camp has an awareness of 72%. chester's camp product manager for the elite segment is determined to have more awareness for camp than andrews' elite product abby. she knows that the first $1m in promotion generates 22% new awareness, the second million adds 23% more and the third million adds another 5%. she also knows one-third of camp's existing awareness is lost every year. assuming that abby's awareness stays the same next year (77%), out of the promotion budgets below, what is the minimum chester's elite product manager should spend in promotion to earn more awareness than andrews' abby product?
a. 2m
b. nothing
c. 1m
d. 3m