Question $5$

In MATLAB, what is $2^{**}$ ones$(3)^2?$

A$.3$

B$.1,1,1$

C$.3,3,3$

D$.6**[1,1,1$;$1,1,1$;$1,1,1]$

E$.3,3,3$;$3,3,3$;$3,3,3$