What does the c$($TRUE$,4\mathrm{.}2)$ command result in when used in R$?$

Question $19$Answer

a$.$

$[1]1\mathrm{.}04\mathrm{.}2$

b$.$

$[1]$ "TRUE" $"4\mathrm{.}2"$

c$.$

$[1]$ TRUE $4\mathrm{.}2$

d$.$

$[1]$ TRUE $"4\mathrm{.}2"$