Answer:either c or b
Step-by-step explanation: to be honest I searched up
Oi
Just calculating the differential. Step by step:

If you want to know where the tangent has no slope:
All the steps arranged in the attachment!
Its A, and both by a factor 1/15
If you would like to know if is 5/12 greater than 0.44, you can calculate this using the following step:
0.44 = 44/100 = 11/25 = 132/300
5/12 = 125/300
Result: 0.44 is greater than 5/12 (0.44 = 132/300 > 5/12 = 125/300).