If the first two statements are true, the third statement is :
I. All Lamels are Signots with buttons.
II. No yellow Signots have buttons.
III. No Lamels are yellow.

A. true

B. false

C. uncertain

Answer: Option A

Solution(By Examveda Team)

We know that there are Signots with buttons, or Lamels, and that there are yellow Signots, which have no buttons. Therefore, Lamels do not have buttons and cannot be yellow.