Psychologist James Pennebaker Conducted Research Asking the Experimental Group to Write

Psychologist James Pennebaker conducted research asking the experimental group to write about their deepest thoughts and feelings. The control group wrote about non-emotional topics. His findings were that

A) the act of writing proved to be distressful for both the experimental group and the control group.
B) the act of writing proved to be beneficial for both the experimental group and the control group.
C) the act of writing about emotional topics proved to be distressing for the experimental group initially, but more beneficial in the long term.
D) the act of writing about emotional topics was beneficial in the short-term, but proved to be distressing in the long-term