Can someone help me

Two waves with amplitudes of 52 units and 98 units come together. Their amplitude, which is measured at a specific point and time, is 46 units. What wave behavior explains this value?
A. destructive interference
B. constructive interference
C. refraction
D. diffraction
E. partial transmission

Question

Can someone help me 

Two waves with amplitudes of 52 units and 98 units come together. Their amplitude, which is measured at a specific point and time, is 46 units. What wave behavior explains this value?
A. destructive interference
B. constructive interference
C. refraction
D. diffraction
E. partial transmission

anonymous · Answer

The answer, as far as I know, is A.  Since the amplitude of the combined waves--occurring at a point where the two waves meet--is less than that of either wave alone, the two must have interfered destructively.