You are preparing educational material about fruits grown across Bangladesh for a school project. The material should include a short composition and specific notes on seasonal fruits, export origins, and ways to promote fruit-eating habits among children.

a. Write a composition of about 200 words titled "Seasonal Fruits of Bangladesh."

b. Name five fruits commonly available in summer in Bangladesh and give one-sentence health benefit for each.

c. Mention two fruits that are widely exported from Bangladesh, and state the regions they are especially famous for.

d. Suggest three practical ways to encourage children to eat more fruits (briefly explain each).