The duration of a B.S. Ed. (Bachelor of Education) programme in Pakistan is:

Correct Answer: 4 Years. The B.S. Ed. is a 4-year bachelor's degree programme for training teachers.

• 1 Year: This is far shorter than the actual B.S. Ed. duration.
• 2 Years: This corresponds to an older or different diploma structure, not the B.S. Ed.
• 3 Years: This is one year short of the actual programme length.