I would say C. Why I say this is because fur is used to keep an animal warm. If the animal no longer needs to be kept warm, then it no longer needs the thick fur.
According to the question, what is not true of lymph and the lymphatic system is the fact that they are found in the intercellular fluid.
The lymphatic or lymph system involves an extensive network of vessels that passes through almost all our tissues to allow for the movement of a fluid called lymph. Lymph circulates through the body in a similar way to blood.
The answer would be "production of gametes" or the first option. Is a mature haploid male or female germ cell which could collide with the opposite sex of the germ cell then for a thing called a zygote which is diploid cell that was formed because of the two gametes cells.
Hope this helps!