Refer to the Figure

Refer to the figure.
The figure shows the mean time in seconds between the start of coitus and ejaculation under different treatment conditions. Both Zoloft and Paxil are SSRIs (selective serotonin reuptake inhibitors) . Data from this figure suggest that

A) only Paxil is effective in treating premature ejaculation.
B) only Zoloft is effective in treating premature ejaculation.
C) neither Paxil nor Zoloft is effective in treating premature ejaculation.
D) Zoloft and Paxil are both effective, but Paxil is more effective.
E) Zoloft and Paxil are both effective, but Zoloft is more effective.