Match the two lists and choose the correct answer from the code given below:List IList II(a) Travelling wave tube(i) kW – MW output power(b) Magnetron(ii) Low-frequency operation(c) Triodes(iii) Low power output(d) Gunn diode(iv) Slow wave circuits

• A. (a) – (iv), (b) – (ii), (c) – (i), (d) – (iii)
• B. (a) – (iv), (b) – (iii), (c) – (ii), (d) – (i)
• C. (a) – (iv), (b) – (i), (c) – (ii), (d) – (iii)
• D. (a) – (i), (b) – (iv), (c) – (iii), (d) – (ii)