Answer:
(c) 97 dB sound intensity level
Explanation:
We have given the intensity of the loud car horn 
We know that 
Now the sound intensity level is given by
, which is nearly equal to 97
So the sound intensity level will be 97 dB
So option (c) will be the correct option
E = hf
E : photon energy
h : Plank's constant 6.63×10^-34
f : frequency
Hope it helped!