What would have eventually happened to the reindeer
herd if the winter had not
made foraging so
difficult?

If a herd experinces a hard winter it can make acess to food and other recources harder,therfore reducing the herd size. If the herd were to not have a difficult time foraging there would be more food available and more reindeer, since there was more food available there will be fewer deaths due to lack of food.

Explanation:

answer: b

coz red blood cells marrow and circulates the body for 120 days.