Choice "A" is correct. Whenever an accountant reports on prospective financial statements, the report should include a caveat that prospective results may not be achieved.
Choice "b" is incorrect. A compilation report on a financial forecast does not include an explanation of the differences between a forecast and a projection.
Choice "d" is incorrect. Whenever an accountant reports on prospective financial statements, the report should include a statement that the accountant assumes no responsibility to update the report for events and circumstances occurring after the date of the report.
Choice "c" is incorrect. A compilation report on a financial forecast does not include a disclaimer of opinion on the reliability of the entity's internal controls.