Which of the following is an accurate revised form of the given sentence.
1- After we creates some posters about healthy food, we had an interview with a dietician


a. After we had created some posters about healthy food, we made an interview with a dietician.

b. After we created some posters about healthy food, we made an interview with a dietician.

c. After we creating some posters about healthy food, we made an interview with a dietician.

d. After we create some posters about healthy food, we made an interview with a dietician.