D. Preformance art focuses on both sight and sound
Answer:
The sound level of 41 singers is approximately 79.52 dB.
Explanation:
As the sound level is given as 63.4 dB
The Intensity to Sound level relation is given as

Here β is given as 63.4 dB
I is to be calculated for 1 singer
I_o is constant as 10⁻¹²
So the equation is given as

Now as there are 41 singers so their I is given as

Now the value of sound level is given as

<span>A vocation is a call from God and a response to God because He is asking us to embrace a certain way of life and looks for our response to this question.</span>