Answer:
a= -3 b=6 c=17 is the correct answer
Step-by-step explanation:
4/6 is 0.666666666666667
3/8 is 0.375
So 4/6>3/8
Solution:
As per the problem
A person is born every 5 seconds and a person dies every 12 seconds.
Here the LCD of 5 and 12 is 60.
The number of person born in 60 seconds
The Number of person died in 12 seconds
Hence Population increase in 60 seconds is
Hence time required to increase the population by one 
It would be the last option. I just worked the problem out and figured it out. I hope this helped! (: