Solution

The correct answer is 12.

Key Points

• The given line is a Python `for` loop: for i in range (begin : end : step) :.
• To determine the number of tokens, we need to break down the line into its individual components.
• Tokens in the given line are: `for`, `i`, `in`, `range`, `(`, `begin`, `:`, `end`, `:`, `step`, `)`, `:`.
• Counting these tokens, we get a total of 12 tokens.