When multiple **WC compartments** are grouped, at least one rule is expressed in the key as a **10%** ratio in the test sentence.
Choices
- (A) 50%
- (B) 5%
- (C) 10%
- (D) 25%
Correct answer: (C)
10%
Explanation
Key: 10%. The Arabic phrasing in the group dump is a bit long — keep the 10% figure tied to *clustered* WC count rules.