Ashley contracted rubella while she was pregnant. her unborn child is most likely to be affected if it is in the of development.

Ashley's fetus is likely to be affected if it is in the first trimester or the first twelve weeks of pregnancy. Rubella is virus and women who are pregnant and come into contact with the pathogen are diagnosed with Congenital Rubella Syndrome. Pregnant women who contract the virus can undergo a miscarriage or have a still birth infant. 

The answer b is correct this all occurred during the red scare