The respective number of signficant figures for the numbers `23.023, 0.0003 and 2.1 xx 10^(-3)` are

Options

A. (a) `5,1,2`
B. (b) `5,1,5`
C. ( c ) `5,5,2`
D. (d) `4,4,2`

Answer

A

Explanation

(a) Number of significant figures in `23.023 = 5`
Number of significant figures in `0.0003= 1`
Number of significant figures in `2.1 xx 10^(-3) = 2`