Hope this helps :) see the attachments
Answer:
960
Step-by-step explanation:
We can find the number of unique combinations by
Multiplying 4*5*6*8
There are 960 possible choices by picking 1 from each group
1) 30
2) 4.5
2 and 4
2) One-third(7)(12)(10) – One-thirdπ(32)(10)
4) 280 – 30π
Answer: The answer is C
