Identifiers should list the data type at the end of the name
The correct answer to this question is A, Option Strict On. This is a feature of Microsoft Visual Basic. Option Strict is not on by default. In this statement, data type conversions are restricted to only widening conversions. In use, Option Strict must appear before any other code.
Once activated, data can be converted into other data, but through this data can also be loss. Error messages can also be generated with Option Strict. These errors include having a variable which can't be declared or late blinding. When these errors occur, Option Strict On checks for the various conditions that could cause the errors.