Which of the following expressions are valid in C++Select one or more:a.None of the aboveb.a  = 11 % 3c.a  =  2 + (b = 5);d.a  = b = c = 5;

All of the expressions b, c, and d are valid in C++.

b. a = 11 % 3; This expression is valid. The modulus operator (%) returns the remainder of the division of 11 by 3, which is 2. This value is then assigned to the variable 'a'.

c. a = 2 + (b = 5); This expression is also valid. The value 5 is assigned to the variable 'b', and then 2 is added to this value. The result, 7, is then assigned to the variable 'a'.

d. a = b = c = 5; This expression is valid as well. The value 5 is assigned to the variable 'c', then this value is assigned to 'b', and finally, 'a' is assigned the same value. So, all three variables 'a', 'b', and 'c' will have the value 5.

So, the correct answer is b, c, and d.