Final answer:
Fabien and Cécile would suggest a) Picnic in the park, hiking, painting, based on their own interests.
Step-by-step explanation:
Based on their interests, Fabien and Cécile would suggest option a) Picnic in the park, hiking, painting. Fabien might enjoy the outdoors and nature activities like hiking and picnic in the park. Cécile, on the other hand, might have an interest in art and creativity, hence suggesting painting as an option. These activities align with their respective interests.