Natasha is 2nd from the front → 1 person ahead.
Natasha is 7th from the back → 6 people behind.

• Total people = 1 + Natasha + 6 = 8.
• John is just behind Natasha, so John is 3rd from the front.
• John's position from the back = 8 − 3 + 1 = 6th.

Final Answer: C: 6th