I would say G sorry if it’s not right
Beryllium, Magnesium, Calcium....etc have two valence electrons
Even though Hydrogen is originally in group 1, based on this property, we can say it is in group 6.
Because:
Group 6 would mean that it only needs 2 more valence electrons till the octet (8 valence electrons). This would make it reactive, yet, in normal conditions, unlike group 7.
Answer:
B. Similar fossils were found in different continents.