I think the correct answer from the choices listed above is the third option. The statement that best explain the purpose of Robinson's letter is to request immediate action from President Eisenhower in furthering equal rights for African Americans. Hope this helps.
The correct answer should be B) Bees are needed to help pollinate many different kinds of trees and flowers.
Answer: The game was very easy, but no one won.
Explanation: "but" Is the conjunction.