关于类型转化，下面选项正确的是？

A.
type MyInt int
var i int = 1
var j MyInt = i

B.
type MyInt int
var i int = 1
var j MyInt = (MyInt)i

C.
type MyInt int
var i int = 1
var j MyInt = MyInt(i)

D.
type MyInt int
var i int = 1
var j MyInt = i.(MyInt)
C