X=b, the integer b is forced to be converted to a floating-point type, so it is 322.00000.

A is the same as 1

C2=b=322, because the character occupies one byte, so 322 overflows (1 0 10000 10). If the integer value corresponding to the last eight digits is 66 and the corresponding character is' b', then the answer should be capitalized B, not B.