What is the function of words and phrases such as on the other hand, also,
and in other words?
oa) they summarize what came before.
ob) they introduce a text.
oc) they transition to another thought.
od they offer support to the text.

Actually it's C) They transition to another thought.

she is later raised by him and his wife, madame valmonde, who sees her as gift from god, as the couple cannot have their own children. later, desiree falls in love with a wealthy man, armand aubigny, and they get married.