Jessica sells carrots at a small vegetable stand in a weekly farmers" market that contains many such stands. On average, she produces and sells $150$ pounds of carrots at $$0\mathrm{.}50$ per pound. Her total cost of producing carrots is $$75$ per week. She needs to decide whether or not to increase the production of carrots. She has been told that the market for carrots demonstrates constant returns to scale.

If this is the case, what is the average cost to produce each pound of carrots when she increases production to $300$ pounds of carrots per week?

A$.$ $$0\mathrm{.}25$ per pound

B$.$ $$0\mathrm{.}50$ per pound.

C$.$ $$0\mathrm{.}75$ per pound

D$.$ $$1\mathrm{.}00$ per pound