The climate of Oceania is tropical or subtropical. This has MOST LIKELY resulted in
A) higher birth rates.
B) lower population densities.
C) more moist broadleaf forests.
D) fewer seasonally wet subtropical savannas.

C)more moist broadleaf forests.

Explanation:

Oceania is a term that describes the geographical location of places notably Aistralia, Melanesia, Polynesia etc.

Its climate is characterized by its hotness and humidity all year the round, with the absence of dry or cold season, however, there is changes in season, with respect to climatic factors such as winds, rainfall and ocean currents.

The Oceania in general is associated with the followings:

1. It consist of layered forest structure and competition for light; high biodiversity.

2. Its vegetation is defined as broadleaved evergreen, lianas, epiphytes

3. It is tropical wet.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.