1. 

Blueberries cost more than strawberries.
Blueberries cost less than raspberries.
Raspberries cost more than strawberries and blueberries.
If the first two statements are true, the third statement is

A. true
B. false
C. uncertain

Answer: Option A

Explanation:

Because the first two statements are true, raspberries are the most expensive of the three.