Nordic Avionics Makes Aircraft Instrumentation

Nordic Avionics makes aircraft instrumentation.Their basic navigation radio requires $90 in variable costs and $3000 per month in fixed costs.Nordic sells 20 radios per month.If they process the radio further to enhance its functionality,it will require an additional $30 per unit of variable costs,plus an increase in fixed costs of $400 per month.The current price of the radio is $270.The CEO wishes to improve operating profit by $1100 per month by selling the enhanced version of the radio.In order to hit his target,the price to be charged for the enhanced product is:

A) $390 per unit.
B) $300 per unit.
C) $105 per unit.
D) $375 per unit.