A vocal school, blab school or ABC school or Old-time School was a type of children's primary school at some remote rural places in North America, outdated and obsolete as the 19th century progressed. The school children recited (blabbed) their lessons out loud separately or in chorus with others as a method of learning.
The answer choice C is my opinion
Diwali, Divali, Deepavali is the Hindu festival of lights, usually lasting five days and celebrated during the Hindu Lunisolar month Kartika (between mid-October and mid-November). One of the most popular festivals of Hinduism, Diwali symbolizes the spiritual "victory of light over darkness, good over evil, and knowledge over ignorance".