Tell why the following number is Uristura scientific number: 3.4
a) It is not a scientific number because it contains exactly one non-zero digit on the left of the decimal multiplied by powers of 10.
b) It is not a scientific number because it contains exactly two non-zero digits on the left of the decimal multiplied by powers of 10.
c) It is a scientific number because it contains exactly one non-zero digit on the left of the decimal multiplied by powers of 10.
d) It is a scientific number because it contains exactly two non-zero digits on the left of the decimal multiplied by powers of 10.