What is the significance of the presence of dual venous drainage, one superficial and the other deep, in the neck and limbs?

A) These vessels have a completely different distribution and so must be located far from one another to avoid competitive drainage issues.
B) There is no known significance for this phenomenon.
C) This distribution is important for regulation of body temperature.
D) This placement is important in the regulation of the distribution of hormones in the circulation.
E) This distribution is critical for proper lymphatic drainage.