Which Assertion About Attachment Behaviours in Different Cultures Is TRUE

Which assertion about attachment behaviours in different cultures is TRUE?

A) Attachment is biologically driven, and thus infants in all cultures display the same types of attachment behaviours and are classified into the same major attachment groups.
B) Although infants of many cultures can be classified into the major attachment categories, some cultures show quite different patterns.
C) Infants in all other cultures show entirely different patterns of attachment behaviour and cannot be classified into the same groups as infants in North America.
D) Attachment behaviours are entirely dependent on culture, and the Strange Situation can be used to classify only infants in North America.