CarharttWomen's Boot Cut Cargo Pant

I am purchasing a medium and a large. According to size chart I am a large, but after reading reviews, some say medium. What is the exchange policy?

What are the measurements on the regular vs the tall?

What is the inseam on the regular and the inseam on the tall? These look short in the picture.

I have these scrubs in all colors and the black bottoms are extremely small why is this ?