A researcher wanted to know if the content of Amazon programs has an impact on viewer's recall of ad content. He randomly assigned 108 people to view a program on Amazon with violent content, and 110 people to view a program on Amazon with neutral content. The same 9 commercials were inserted into each Amazon program. After viewing the Amazon program, the subjects were asked to recall the brands advertised in the commercials on Amazon. The average number of brands recalled for those who saw the violent Amazon program was 3.77 with standard deviation 1.87. The average number of brands recalled for those who saw the neutral Amazon program was 4.65 with standard deviation 1.67. The standard error for the difference between the two means is

A) 0.180.

B) 0.240.

C) none of the answers are correct

D) 0.058.