One Study of Czechoslovakian Children Whose Mothers Had Unplanned, Unwanted

One study of Czechoslovakian children whose mothers had unplanned, unwanted pregnancies found that, compared to children who had been "wanted," these "unwanted" children

A) quickly changed their mothers' attitudes and developed normally from infancy onward
B) showed developmental impairments throughout the school years and into adulthood
C) showed insecure attachments in infancy but otherwise were indistinguishable from "wanted" peers
D) none of these