Arrange the following concepts in the order that reflects the progression of Victoria Clarke's research focus on LGBT relationships: A) Examination of same-sex parenting, B) Analysis of identity within LGBT communities, C) Exploration of marriage equality, D) Investigation of relationship dynamics in same-sex couples.

Victoria Clarke first looked at how same‑sex parents raise children. Other options are incorrect because This answer puts identity before parenting, which misses the fact that parents’ experiences were the starting point; Starting with marriage equality ignores the earlier questions about parenting and identity.