You are asked to prepare a short school assignment on the topic of Child Labour in Bangladesh. The assignment should include a focused composition, practical policy ideas, a memorable slogan for a school campaign, and references to active organizations that work on this issue in the country. Use clear, age-appropriate language suitable for secondary-school students.

a. Write a composition of about 180–220 words on 'Child Labour in Bangladesh', covering causes, effects, and a brief call to action.

b. List and explain five realistic measures the government and communities can take to reduce child labour in Bangladesh.

c. Create a concise slogan (no more than 10 words) suitable for a school poster against child labour.

d. Name three organizations or institutions in Bangladesh that work on child protection or child labour issues, and give one short sentence about the role of each.