Read the following email message. Complete the email by filling in the blanks. Select the best choice for each blank.

Dear Master Builder Thomas, I am writing regarding the upcoming castle defense inspection at Blackstone Keep. As the new castellan, I need to ensure our defenses meet royal standards. Our outer walls are currently 1......, which I believe meets minimum requirements. However, I'm concerned about our moat system, which is 2....... The gatehouse seems well-equipped with both 3....... In terms of siege preparation, we have a trebuchet that requires 4...... to operate effectively. My biggest concern is our supplies - we currently only have 5...... of provisions stored. Could you advise when you might be available for a full inspection? Best regards, Lord Edmund

Choose the best option.

The castle's defensive features 1....... The siege equipment described in the guide 2....... The guide suggests that castle defense 3.......