The units nanometer fermi angstrom and attometer arranged in decreasing order will read as _______ .

Options

A. Angstrom nanometer fermi attometer
B. Fermi attometer angstrom nanometer
C. Nanometer angstrom , fermi attometer
D. Attometer angstrom , fermi , nanometer

Answer

C

Explanation

1 nanometer = `10^(-9)` m
1 angstrom = `10^(-10) `m
`1 fermi = 10^(-15)` m
1 attometer = `10^(-18) `m