The value of Planck's constant is 6.63 × 10⁻³⁴ js. The velocity of light is 3.0 × 108 ms⁻¹ . Which value is closest to the wavelength in nanometers of a quantum of light with frequencty of 8 × 10¹⁵ s⁻¹
A. 3 × 10⁷
B. 2 × 10⁻²⁵
C. 5 × 10⁻⁸
D. 4 × 10¹