Final answer:
Under the completed-contract method, Reedy Builders would recognize a gross profit or loss of $0 for the year 2015 because the contract is not completed, and revenue and profit recognition is deferred until completion.
Step-by-step explanation:
The gross profit or loss to be recognized by Reedy Builders, Inc. for 2015 under the completed-contract method would be $0 since this accounting method recognizes revenues and gross profit only when a contract is substantially complete. At the end of the first year, the contract in question is not yet completed, and therefore no gross profit or loss should be recognized.