In a Field Study Involving the Residents of a Senior

In a field study involving the residents of a senior care facility, all of the following were findings

A) 93% of the responsibility group showed improvement in eating, sleeping, and mood.
B) The responsibility group showed improvements in a number of variables, but a slightly increased death rate.
C) 71% of the control group became more debilitated during the test period.
D) The death rate of the control group was slightly higher during the test period than the average death rate of the facility just prior to the study.