Look at the table. Be sure to type the correct answer such as a$,$ b$,$ c$,$ d$,$ or e$.$ Do not type your answer. Ensure your answers adhere to the multiplechoice format, even if you encounter different decimal points.

COBU $305$ Store sells beds and assorted supplies. The best$-$selling bed has an annual demand of $1,000$ units. Ordering cost is $$30,$ while holding cost is $$10$ per unit per year.

The economic order quantity of the unit is type your answer...

a$)67\mathrm{.}3$

b$)77\mathrm{.}5$

c$)87\mathrm{.}2$

d$)97\mathrm{.}4$

e$)102\mathrm{.}1$