Fact 1: All cats like to run.
Fact 2: Some cats like to swim.
Fact 3: Some cats look like their masters.
If the first three statements are facts, which of the following statements must also be a fact?
(I) : All cats who like to swim look like their masters.
(II) : cats who like to swim also like to run.
(III) : cats who like to run do not look like their masters.

Lets evaluate each given statement : 
1. All cats who like to swim look like their masters is a wrong statement because Fact 2 & Fact 3 says that some cats likes to swim and some cats look like masters . Hence, the both set of cats need not be same.

2. Cats who like to swim also like to run . This is true statement because this can be deduced by using fact 1 & fact 2 which says all cats like to run.

3. cats who like to run doesn't look like masters is a wrong statement because there are some cats who look like their masters.

Therefore, Only II.