What is the correct statement about exceptions?

a$.$ Exceptions are thrown at run$-$time when the program is run$/$executed using java.

Exceptions are thrown at run$-$time when the program is run$/$executed using java.

b$.$ Examples of exceptions are variable not defined, precision lost, incompatible

data types

c$.$ None of the above

d$.$ Exceptions are thrown at compile$-$time when the program is compiled using java

compiler $($javac$)$