A mutual fund ends trading on a Monday at $$4\mathrm{.}00$ a unit, on Tuesday at $$4\mathrm{.}50$ a unit, on Wednesday at $$4\mathrm{.}25$ a unit and on Thursday at $$4\mathrm{.}10$ a unit. How much will an investor selling $100$ units at noon on Wednesday receive?

Select one:

a$.$

$$400$

b$.$

$$425$

c$.$

$$410$

d$.$

$$450$