`{:(,"Column A",,, "Column B"),(A., "Frequency", (), a., "Detect flaws inside a metal"),(B., "The loudness of sound", ( ), b., "Ghatam"),(C., "The angle of incidence", ( ), c., "Equal to the angle of reflection of sound"),(D., "Ultrasounds", ( ), d., "Amplitude"),(E., "Ghana vadya", (), e., "Ratio of the number of oscillations to the time taken"):}`
A. `A to e, B to d, C to c, D to a, E to b`
B. `A to c, B to e, C to b, D to a, E to d`
C. `A to d, B to c, C to e, D to d, E to a`
D. `A to e, B to c, C to d, D to a, E to b`