Suppose you are Sabbir, a student of class VI in Udayan School. The students of your class want to organize a Sports Day to encourage physical fitness and team spirit. Prepare the following pieces of writing needed for the event.

a. Write a formal application to the Headmaster requesting permission and necessary support to hold the Sports Day. Mention date, purpose, and required help.

b. Write a short notice to be put on the class noticeboard informing classmates about the Sports Day. Include time, venue, and what students should bring.

c. Draft a polite letter addressed to the Parent-Teacher Association (PTA) requesting assistance for prizes, medals and first-aid arrangements.

d. Write a brief official reply from the Headmaster granting permission and listing any conditions or support the school will provide.