The correct answer is C. Future Continuous.
The future continuous tense is used to talk about actions that will be happening or continuing at a specific time in the future. In the sentence “I will be repairing the roof,” the speaker is saying that they will be in the process of repairing the roof at a specific time in the future.
The simple past tense is used to talk about actions that happened at a specific time in the past. The future perfect tense is used to talk about actions that will have happened by a specific time in the future. The future perfect continuous tense is used to talk about actions that will have been happening or continuing for a period of time by a specific time in the future.
Here are some examples of how the future continuous tense can be used:
- I will be working at the office tomorrow.
- We will be visiting our grandparents next week.
- The meeting will be starting at 9:00 AM.
- The food will be ready in 30 minutes.
I hope this helps!