Match the following expressions with their value given:

s $=$ "Happy"

t $=$ "Days"

Question $12$ options:

t $+$ s

len$($s$)+$ len$($t$)$

s$[1]+$ s$[2]$

s$[$len$($s$)//2]$

s $*2$

s $+$ t

$1.$

$9$

$2.$

ap

$3.$

p

$4.$

HappyDays

$5.$

DaysHappy

$6.$

HappyHappy

$7.$

DaysDays

$8.$

Ha

$9.$

Happy Days

$10.$

$10$