The respective number of significant figured for the numbers 23.023, 0.0003 and 2.1 × 10^(-3) are

Q: The respective number of significant figured for the numbers 23.023, 0.0003 and 2.1 × 10^(-3) are

(a) 5, 1, 5

(b) 5, 5, 2

(c) 4, 4, 2

(d) 5, 1, 2

Ans: (d)