5. Shrine Hills Matina is a place in Davao City with an elevation of at least 15 meters above sea level, however, there are lots of sea creature remnants scattered all over the area especially giant bivalves called “taklobo”. How can this be?

A. There must be a big earthquake that came along with the upward movement of oceanic crust resulting to formation of this region or of the entire island.

B. There must be a great underwater volcanic eruption that pushed sea creatures upward, mixed with its lava and formed this region or the entire island.

C. Ancient settlers of this area must be fond of collecting sea creatures and burying them all over the place.

D. Ancient settlers of this area manufacture “taklobo” to be brought into the ocean.