1.

How many ways can one choose 20 cookies from 45 different types (assuming there are at least 20 of each type)?

A. ⁶⁴C₂₁ * 15
B. ⁶⁴C₂₀
C. ⁴⁴C₂₀ * 2!
D. ⁶⁵C₂₂
Answer» C. ⁴⁴C₂₀ * 2!


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