A : The maximum possible error in a reading is taken as least count of the measuring instrument.
R : Error in a measurement cannot be greater than least count of the measuring instrument.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

C