loan of $$28,000\mathrm{.}00$ at $6\mathrm{.}00\%$ compounded semi$-$annually is to be repaid with payments at the end of every $6$ months. The loan was settled in $5$ years.a$.$ Calculate the size of the periodic payment.O $$3,026\mathrm{.}17$O $$3,804\mathrm{.}30-$ WO $$3,282\mathrm{.}45.$ $$3,596\mathrm{.}15$b$.$ Calculate the total interest paid.

A $$4824\mathrm{.}50$

B $$32824\mathrm{.}50$

C $$1542\mathrm{.}05$

D $$8106\mathrm{.}95$