What is the passage mainly about?

Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 39 to 43.
During the five days of Diwali, every home and temple was decorated, inside and outside, with lovely clay lamps and colourful candles. After dark, the whole neighbourhood glittered with thousands of tiny lights, as though in a fairy tale. Excited children set off firecrackers, and at first, I was frightened by the loud bangs, but the spectacular display was so fascinating that I soon joined in the spirit of the celebration.
Last autumn I was in India during Diwali, the "Festival of Lights" which takes place every year to celebrate the victory of good over evil. This festival lasts for five days and is held at the end of October or in the first week of November.
Diwali is a deeply moving festival. I am very grateful I had the chance to share in this celebration of peace and harmony. I have fond memories of the experience, and in particular I will never forget how friendly and generous the people were.
Preparations began weeks before the event. People cleaned their homes and painted wonderful designs called rangolis on the walls and floors. They bought beautiful new clothes and jewelry to wear during the festival, and women made delicious sweets which were better than any others I have ever tasted.
(Adapted from "Reading and Writing Target" by Virginia Evans)
What is the passage mainly about?
A. A New Year's Eve to remember.
B. Preparations before the event.
C. Activities during the ceremony.
D. A great party.