Explanation:

To find the day of the week for March 9, 2002, follow these steps:

- Calculate Year Code: For the year 2002, the century code is 0 (as 2000-2099 have a code 0). The last two digits are 02. Divide 02 by 4 which gives 0.5, taking only the integer part results in 0. Add the year (02) and we get 2.

- Calculate Month Code: For March, the month code is 3.

- Day of the Month: The day given is the 9th.

- Sum Everything: Add the year code (2), month code (3), and the day of the month (9). This equals to 14.

- Find Day of the Week: Divide the sum (14) by 7, which results in a remainder of 0.

- Determine Day: A remainder of 0 corresponds to a Saturday in 2002.

Options:

1. Saturday

2. Tuesday

3. Monday

4. Friday

- Correct answer: Option 1 - Saturday