Scandinavian mtDNA haplogroup (maternal linage)

Haplogroup U5 is prevalent in Scandinavian populations and is often linked to the maternal lineage of early European hunter-gatherers. This haplogroup is considered one of the oldest in Europe and is particularly associated with ancient European populations. Problem: Which mitochondrial haplogroup is prevalent in Scandinavian populations and is often linked to the maternal lineage of early European hunter-gatherers? A) Haplogroup H B) Haplogroup U5 C) Haplogroup X D) Haplogroup L3