The National Train Company of Country X has decided to offer its employees a classical music appreciation course free of charge in order to increase productivity. The decision was reached after a study was published confirming the positive effects of classical music on the human psyche: facilitating improved stress management and inducing a feeling of tranquility.
Which of the following, if true, most seriously strengthens the National Train Company's conclusion?
(A) A newspaper article appearing in the science section states that classical music is more conducive to sleep than Pop, Rock and Roll and Rhythm & Blues.
(B) The cost of the classical music appreciation course, per student, comes to 10% of the average monthly salary paid in the National Train Company.
(C) A survey handed to students in 10 separate music appreciation courses shows that music appreciation courses affect the musical tastes of only 20% of participants.
(D) Classical music appreciation courses are preferred by employees of large companies over Pop or House music appreciation courses.
(E) Classical music has been shown to have a positive effect on the digestive system, thus lowering the average days of sick leave among those who listen to it.
The OA will be automatically revealed on Monday 21st of September 2026 07:00:08 PM Pacific Time Zone