question_answer

Read the following stories and answer the questions that follow:

In the middle of the big river, the river that began in the mountains and ended in the sea, was a small island. The river swept round the island, sometimes clawing at banks, but never going right over it. A small hut stood on the island, a mud-walled hut with a sloping thatched roof. The hut had been built into a huge rock, so only three of the walls were mud, and the fourth was rock.

A few goats grazed on the short grass which grew on the island. Some hens followed them about. There was a melon patch and a vegetable patch.

In the middle of the island stood a peepal tree. It was on old tree. Many years ago, a seed had been carried to the island by a strong wind, had found shelter between two rocks, had taken root there, and had sprung up to give shade and shelter to a small family.

Grandfather was mending a fishing-net. He had fished in the river for ten years, and he was a good fisherman. He knew where to find the slim silver chilwa, the big beautiful mahseer and the long moustached singhara; he knew where the river was deep and where it was shallow; he knew which baits to use - which fish liked worms and which liked gram. He had taught his son to fish, but his son had gone to work in a factory in a city, nearly a hundred miles away. He had no grandson; but he had a granddaughter, Sita, and she could do them better. She had lost her mother when she was very small. Grandmother had taught her all the things a girl should know. But neither of her grandparents could read or write, and as a result Sita couldn't read or write either.

Sita could not read or write because ___.

A) she lived alone on the island

B) there was no school on the island

C) she lived with her grandparents, who  could not read and write  

D) she could not see