Question:
When defining identifier in PHP you should remember that?

Option A):
Identifiers can be any length
Option B):
Identifier are case sensitive. So $result is different than $ result
Option C):
Identifier are case sensitive. So $result is different than $ result and Identifiers can be any length
Option D):
None

Correct Answer is Option C):
Identifier are case sensitive. So $result is different than $ result and Identifiers can be any length