The output of $\_\_\_\_\_\_$ will be converted into scientific notation as $1\mathrm{.}23456$e$+2.$

a$.$

$123\mathrm{.}456$

b$.$

$1\mathrm{.}23456$

c$.$

$12\mathrm{.}3456$

d$.$

$0\mathrm{.}123456$