To find the day of the week, first calculate the number of days between 10th March and 25th March. $25 - 10 = 15$ days. Since the days of the week repeat every 7 days, we divide the total number of days by 7 and find the remainder. $15 \div 7 = 2$ with a remainder of $1$. This means the day will be 1 day after Tuesday. Tuesday + 1 day = Wednesday. Wait, I made a mistake in my thought process. $15 \div 7 = 2$ remainder $1$. So it should be Tuesday + 1 day = Wednesday. Let me re-evaluate. Let's count: 10th (Tuesday), 11th (Wednesday), 12th (Thursday), 13th (Friday), 14th (Saturday), 15th (Sunday), 16th (Monday), 17th (Tuesday), 18th (Wednesday), 19th (Thursday), 20th (Friday), 21st (Saturday), 22nd (Sunday), 23rd (Monday), 24th (Tuesday), 25th (Wednesday). Ah, the calculation of 'number of days between' should be inclusive of the end date, or exclusive of the start date if considering 'days after'. If we count 'days after 10th March until 25th March', it's 15 days forward. If 10th is Tuesday, then 10+7 = 17th is Tuesday. 17+7 = 24th is Tuesday. So, 25th must be Wednesday. My initial option was wrong. I must correct the options or my calculation. Let's make the correct option as Wednesday and fix the JSON.

Corrected explanation: To find the day of the week, first calculate the number of days from 10th March to 25th March, inclusive of 25th March. The number of days is $25 - 10 = 15$. Since the days of the week repeat every 7 days, we divide the total number of days by 7 and find the remainder. $15 \div 7 = 2$ with a remainder of $1$. This means the day will be 1 day after Tuesday. Counting forward 1 day from Tuesday, we get Wednesday. Therefore, 25th March will be a Wednesday.