Total crates: 25
=> 3 Varieties: McIntosh, Rome, and Winesap
=> Conditions: Winesap > McIntosh (crates) and Winesap > Rome (crates)
So, the number of crates of Mcintosh can be lesser than those of crates of Rome, or they both can be equal.
=> A rough division of 25 in 3 gives us 9, 8, 8
Winesap: 9; McIntosh: 8 and Rome: 8
Any other combinations will increase the crates of Winesap. For example McIntosh : 8 > Rome 7 will give Winesap = 10.
So, the minimum possible crates for Winseap = 9
Answer C