Figure: A Researcher Tested Whether Exposure to Images of Very Thin

Figure:
A researcher tested whether exposure to images of very thin fashion models causes young women to be dissatisfied with their own body,compared to exposure to athletic body images or neutral (non-body) images.She randomly assigned 60 women from an introductory psychology course to one of three exposure conditions: very thin female body images,athletic female images,or neutral images.Each condition had 10 images,projected individually on a large screen.The young women participated in small groups.Each image was displayed for 1 minute,for a total of 10 minutes of exposure.After viewing each image,participants wrote for 30 seconds a description of the image (the participants were led to believe their memory was being tested) .After viewing the images,the women completed a questionnaire about satisfaction with their body.Negative scores indicate body dissatisfaction and positive scores indicate satisfaction with their body.The mean scores for each condition were as follows:
-Assume the average variability of participants' body satisfaction scores is 1.0.Based on this we can state that the effect of viewing very thin images compared to athletic images is

A) small,d = .25.
B) medium,d = .75.
C) large,d = 1.0.
D) extra large,d = 2.0.