What is the coldest part of the cat’s body?

It Depends Cat is indoor or outdoor But As per the body part concern that  i will Considered around the neck but Temperature Remain the same which i Analyzed too

Explanation:

A cat's normal body temperature can range from 100.5 to 102.5 degrees. Because 101.5 degrees is right in the middle, it's often referred to as a “normal” body temperature. Being that their body temperature is higher than ours, they can also tolerate higher temperatures (provided they have access to water).

i was thinking more like reflects green light, just not sure

mass and volume are the answers you are looking for