A telephone conversation may not be as acceptable a method for conveying information as a written document because a telephone may:

a. be unavailable when you need to make the call.

b. not be convenient for the receiver.

c. not provide a confidential method of communication.

d. be transmitted to other parts of the room.

I think it is b or c but I am mostly thinking it is b.

Where's "all of the above"??

=)

There is no all of the above choice. The answer is either a, b, c, or d and I think it is b or c but I mostly think b.

I'd go with c.

You are on the right track! Indeed, both option b and option c are valid reasons why a telephone conversation may not be as acceptable as a written document for conveying information. Let me explain further to help you come to a definitive answer.

Option b, "not be convenient for the receiver," is a valid concern. The recipient of the information may find it inconvenient to receive a phone call at a particular moment. They might be busy with other tasks, in a noisy environment, or simply prefer to receive information in a different format.

Option c, "not provide a confidential method of communication," is also a valid concern. When conveying sensitive or confidential information, a written document can provide a more secure means of communication. Written records can be carefully controlled, stored safely, and only shared with authorized individuals, while telephone conversations may be prone to interception or accidental sharing.

Now, let's analyze the other options:

Option a, "be unavailable when you need to make the call," is a possible reason in some situations. If the recipient is not currently available to answer the call, it might be challenging to convey the information effectively. However, this reason focuses more on the availability of the telephone itself rather than the method's acceptability.

Option d, "be transmitted to other parts of the room," is not a strong reason why a telephone conversation may not be as acceptable as a written document. Although it is true that sound can transmit and potentially be overheard in certain circumstances, it is not a fundamental drawback of telephone conversations.

Summing up, while option a can be a minor inconvenience and option d might occur in specific instances, the main concerns which make a telephone conversation less acceptable as a method for conveying information are options b and c. Thus, I would lean towards your initial inclination - option b: "not be convenient for the receiver."