Which part of an appeal to logic is being used in sentence (2)?

(1)All parents should buy their children cars. (2)On average, parents spend three hours in a car per week driving their children to activities. (3) Buying a car will save parents time.

A. Claim
B. Evidence
C. Warrant

Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.