MOCKEXAM$210$ What nominal rate of interest$-$compounded quarterly will have to be earned on a savings account for it to grow from $$1525$ to $$1955$ over a period of $21$ months

a$.$

$15\mathrm{.}45\%$

b$.$

$14\mathrm{.}45\%$

c$.$

$12\mathrm{.}45\%$

d$.$

$10\mathrm{.}45\%$

e$.$

$3\mathrm{.}61\%$