In the circuit shown below, the switch is closed at t = 0, applied voltage is v (t) = 100cos (103t+π/2), resistance R = 20Ω and inductance L = 0.1H. The value of c in the complementary function of ‘i’ is?

• A. c = -0.98cos⁡(π/2-78.6o)
• B. c = -0.98cos⁡(π/2+78.6o)
• C. c = 0.98cos⁡(π/2+78.6o)
• D. c = 0.98cos⁡(π/2-78.6o)