Which of the following are true about type casting?

Select one or more:

a.Typecasting is used when we would like to change the type of a variable from one to another. for eg, from int to double.

b.Type casting can ONLY be used to convert an integer type to a double type value.

c.If you have a integer variable x, and you want to cast it to double you can either say static_cast(x) or double(x)

d.In C++, there IS a difference between the values obtained by the 2 statements below: double d = 9 / 2; double d = 9.0 / 2;