Consider the following algorithm. The output is not given.

Input: A number k $>=0$

Output: Returns $??$

x$0$

y$0$

while x$<=$k do

x$$x$+1$

y$$y$+3$

return y

Which of the following is$/$are true? Select all that apply.

Group of answer choices

$3$k $+3$

It is not possible to say from the information given?

The output is a always a multiple of $3.$

The algorithm always terminates.