Read the passage carefully and choose the best answer to the question followed out of the four alternatives.

I had seen this road many years ago when my parents moved to Mundakotukurussi, our ancestral village. However, in those early years, I hadn't begun exploring the countryside. I stored the unknown road in my head under 'One Day I will'. Ten years ago, when I recovered from a herniated disc, it was to discover that I had a useless left leg. Though I managed to lose the limp, I hated not being able to stride around as I used to. I needed a challenge to tell myself that I wasn't going to buckle to a creature called sciatica. Thus the 'One Day I Will' arrived. 'Where does the road by the medical shop lead to?', I asked my parents while visiting them next. 'Chalavara', they said. 'It's not an easy road to walk on', my father added. 'There are too many ups and downs.' Chalavara was a superior grade of a village as compared to Mundakotukurussi, with a high school, a fine library, ATMs and several shops. But it also has two approach roads. The one I had chosen was a narrow back road used by the locals and that settled it for me. I needed to know for myself I could walk a road that wasn't going to be easy. And the next day, I would get up and walk that road again.

What disability did the writer suffer due to the herniated disc?

• A type of animal

• Name of a real place

• Name of an imaginary place

• A herniated disc