D Question 4 1 pts Time for the big school talent show! In an attempt to disgrace a pianist, a devious kid loosens one of the two strings that are supposed to sound together when the player hits an A above middle C. One string vibrates at the correct frequency of 440 Hz, and when the key is struck, the stunned student pianist hears 5 beats per second. What is the frequency of the loosened string? 88 Hz 445 Hz 435 Hz 2200 Hz