Logical thinking and problem solving : Choose A, B, C, D to answer each question. Câu 646: Tanya is older than Eric. Cliff is older than Tan...

Logical thinking and problem solving: Choose A, B, C, D to answer each question.

Câu 646:

Tanya is older than Eric. Cliff is older than Tanya. Eric is older than Cliff. If the first two statements are true, the third statement is________.

1. true         
2. false                 
3. uncertain                 
4. no idea