Answer:
The salutation of a business letter should include any of these is acceptable
Step-by-step explanation:
Since we can face different situations, it is important to mention that the most important part is to use formal salutations like Dear... and then depending on the information that you have about the person who is going to read the letter you can either use the name with the title as in Dear Mr. Rivers, or the full name as in Dear James Rivers, finally the least formal option but still functional Dear James.