Which of the following actions requires an agent for a corporation to have a written agency agreement?

Fantastic news! We've Found the answer you've been seeking!

Question:

Which of the following actions requires an agent for a corporation
to have a written agency agreement?

Purchasing office supplies for the principal’s business.
Purchasing an interest in undeveloped land for the
principal.
Hiring an independent general contractor to renovate
the principal’s office building.
Retaining an attorney to collect a business debt owed
the principal.