A material of threshold frequency $4.5\times {10}^{15}Hz$, was bombarded with Photons of frequency $8.0\times {10}^{15}Hz$. What is the kinetic energy of the emitted photoelectrons (in eV)?
\(\left[h=6.60 \times 10^{-34} Js , 1 eV =1.6 \times 10^{-19} J \right]

A. 2 .81 eV
B. 2.19 eV
C. 5.00 eV
D. None of the above  

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Correct Answer: D