A.const double PI3.1415926; B.const doublee=2.7 C.definedouble PI3.1415926 D.define doublee=2.7
A.10%3=3 B.10/3=3 C.10%3=1 D.10/3=1
A.int age=12.5; B.string name=ACCP; C.double money=100.0; D.char leel=A;