Visual programming (choose the correct answer)

29 1 To extend the contents of a file, which one of the following mode options should be used in the writing process. O Open O Create Truncate Append 30 Given the following statement: 1 The laptop is a computer. Then: O Computer is derived class and the laptop is base class o Computer and laptop are derived classes O Non of the options is correct O Laptop is derived class and the computer is base class