JEE Main 2021 Physics question

Match List-I with List-II : List-I: (a) Source of microwave frequency (b) Source of infrared frequency (c) Source of Gamma Rays (d) Source of Gamma Rays List-II: (i) Radioactive decay on nucleus (ii) Magnetron (iii) Inner shell electrons (iv) Vibration of atoms and molecules (v) LASER (vi) RC circuit Choose the correct answer from the options given below :

• (A)(a)-(vi), (b)-(iv), (c)-(i), (d)-(v)
• (B)(a)-(vi), (b)-(v), (c)-(i), (d)-(iv)
• (C)(a)-(ii), (b)-(iv), (c)-(vi), (d)-(iii)
• (D)(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)Correct