The heat of atomization of methane and ethane are $360\; kJ/mol$ and $620\; kJ/mol$, respectively. The longest wavelength of light capable of breaking the $C - C$ bond is (Avogadro number =$6.02 \times 10^{23} ,\; h =6.62 \times 10^{-34}\; J s$) :

Question

( A ) $1.49 \times 10^3\; nm$
( B ) $2.48 \times 10^3 \; nm$
( C ) $2.48 \times 10^4\; nm$
( D ) $1.49 \times 10^4\; nm$