Riddle

The less of them you have; the more one is worth. Who/What are they?

Choose an answer

A.Money
B.Time
C.Diamonds
D.Friends.
Hint: It's a word with 7 letters, starting with "F".

Answer

Friends.

Why this is the answer

True friends become more valuable to you the fewer of them you have.

This riddle is filed under "What Am I?" Riddles and rated Easy.