Consider the following algorithm for generating a sequence:

Method find element$($and$)$

then return $3$

endMethod

if n $=1$

then return $1$

else if n $=2$

else return find element$($n$-1)+$ find$\_$element$($n$-2)$

What is find element$(5)?$

Select one: a $11$

b$.15$

c $7$

d $21$