In future you must ask in the Ask the Tutor Forum if you want me to answer – this forum is for students to help each other 🙂
Option 2 is certainly incorrect – forward contracts are binding contracts and are not flexible.
However, option 1 is incorrect also – it is the other way round. Futures are more flexible than forward contracts. Are you sure that you have copied it correctly (this question is not in the current edition of the BPP Revision Kit and so I cannot check the wording myself).
Forward contracts and futures are all explained in my free lectures. The lectures are a complete free course for Paper F9 and cover everything needed to be able to pass the exam well.