Which statement below is incorrect?

Select one:

A.If I want to generate a series of "1 1 2 2 3 3 4 4 11", I can use the R code of "rep (1,2,3,4, each=2, length=10)".

B.It is possible that when we minimize the volatility to achieve a target return, the Sharpe ratios are the same in scenarios with and without short sale constraints.

C.I run the following code "

p=2;

q=3;

a=p

c="I love R";

u=c>a;

u=c

print (u)"

The result should be "FALSE".

D.If a variable has a negative skewness, its mean must be less than its median.