What is the output of the statement in Scala: $(1$ until $4).$map$(\_*\_)$

Question $5$ options:

$1)$

$1,4,9,16$

$2)$

$1,4,9$

$3)$

$1\mathrm{.}0,4\mathrm{.}0,9\mathrm{.}0$

$4)$

Error