To answer this question, we need to know the birthplace of Mahatma Gandhi.
Option A) Rajkot - This option is incorrect because Rajkot is not the birthplace of Mahatma Gandhi.
Option B) Porbandar - This option is correct because Porbandar is the birthplace of Mahatma Gandhi.
Option C) Wardha - This option is incorrect because Wardha is not the birthplace of Mahatma Gandhi.
Option D) Junagadh - This option is incorrect because Junagadh is not the birthplace of Mahatma Gandhi.
The correct answer is B) Porbandar. This option is correct because Porbandar is the birthplace of Mahatma Gandhi.