In Choose A Similar Word type, a group of three words is given, followed by four other words as alternatives. The candidate is required to choose the alternative, which is similar to the given three words.

Which of the following is the same as Radium, Polonium, Uranium ?

A. Thorium
B. Caesium
C. Barium
D. Strontium
Answer: A . Thorium

Justification: All are radioactive elements.