Type mismatch gives compile time error for statically typed languages (type of variables are determined at compile time) like C.
Use of uninitialized variable can be detected by compiler? Not always- but possible in most cases. There can be cases where there are two branches and a variable is initialized in one but not in other. But, at compile time we can assume that we are only interested in those variables which are uninitialized in all the branches,
Array index out of bounds- can be detected by compiler in some cases. Consider
int a[100];
a[200] = 4;
A decent C compiler should catch this. But if the index is a variable it becomes more difficult to catch at compile time.
So, answer should be C.