The average temperature for Monday, Wednesday and Friday was $$ 41^\circ$$C. The average for Wednesday, Friday and Thursday was $$ 42^\circ$$C. If the temperature on Thursday was $$ 43^\circ$$C, then the temperature on Monday was:

A

$$ 43^\circ$$

B

$$ 41^\circ$$

C

$$ 42^\circ$$

D

$$ 40^\circ$$