As a result of annihilation of electron and positron, number of γ–ray (Gama ray) photons are: ________?

A. Two
B. Three
C. Four
D. One

Submitted by: Rizwan Ayub Saadi

The correct answer to the question: "As a result of annihilation of electron and positron, number of γ–ray (Gama ray) photons are: ________?" is "Two ".