What's that data type?

Do you remember that when you added 5 + "six", you got an error due to a mismatch in data types? You can avoid such embarrassing situations by checking the data type of a variable beforehand. You can do this as follows:

class(some_variable_name)

In the workspace (you can inspect it by typing ls() in the console), some variables have already been defined. Which statement concerning these variables are correct?

Possible Answers

a's class is integer, b is a character, c is a boolean.
a's class is character, b is a character as well, c is a logical.
a's class is numeric, b is a string, c is a logical.
a's class is numeric, b is a character, c is a logical.

Exercise

What's that data type?

Instructions

Possible Answers