Three days earlier than Friday is found by counting backwards:
Friday - 1 day = Thursday
Friday - 2 days = Wednesday
Friday - 3 days = Tuesday
Therefore, the 7th day of the month is a Tuesday.
The number of days from the 7th to the 19th:
19−7=12 days
To find what day it is 12 days after Tuesday, we note that:
12=7+5
After 7 days (one complete week), the day remains Tuesday.
Counting 5 more days from Tuesday:
Tuesday + 1 = Wednesday
Tuesday + 2 = Thursday
Tuesday + 3 = Friday
Tuesday + 4 = Saturday
Tuesday + 5 = Sunday
Therefore, the 19th day of the month is a Sunday.
The answer is Option 4: Sunday.