Answer: C. because
Explanation:
Repair: fix or mend
Invite: make a polite, formal, or friendly request to (someone) to go somewhere or to do something.
Because: for the reason that; since.
Cooking: prepare food, a dish, or a meal
From the given choice, "repair", "invite", and "cooking" are all verbs or in-person actions, while "<u>because</u>" is a conjunction.
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B. A possessive noun should have its instead of it's (which is a contraction for it is).
For A. Diana is a singular noun and the apostrophe should come after the r instead of after the s.
For C. The duck would've dunked ITS instead of IT'S beak since it is possessive.
For D. You do not need to put an apostrophe since theirs is already a possessive noun.
This opens the scene/describes what will happen. This is best done without giving a plot overview.