Answer: (A) Corporation
Step-by-step explanation:
According to the given question, school is collaborating with one of the publishing firm and the we considered the publishing company as s school's corporation partner.
Corporation is the term which is refers to the legal type of entity where the shareholders manage all the operation and function of the company.
The importance of the corporation partnership is that it is basically providing the various types of benefits and also the common values and the goals in an organization.
Therefore, Option (A) is correct answer.