A new fitness program promises to significantly reduce participants' body fat within three months. For this program to achieve its promised results, which of the following must be true?

The correct answer to the question "A new fitness program promises to significantly reduce participants' body fat within three months. For this program to achieve its promised results, which of the following must be true?" is Option C: The participants' adherence to the program's guidelines will be sufficient to cause the reduction..

The other options — A) Participants will not engage in any other fitness activities during the three months., B) The program includes a strict dietary regimen in addition to exercise., D) The program is more effective than any other fitness program currently available. — are incorrect for this GMAT Exam Prep question. As explained above: For the program to achieve its *promised results*, it's fundamentally necessary that following its guidelines leads to those results. If adherence isn't sufficient, the promise cannot be met. Option …