Final answer:
The statement 'Reduces the amount of time women spend firewood' means that women use firewood more efficiently.
Step-by-step explanation:
The statement 'Reduces the amount of time women spend firewood' means that women use firewood more efficiently (B. Women use firewood more efficiently).
In many rural areas, women are responsible for collecting firewood for cooking and heating purposes. By using firewood more efficiently, women can reduce the amount of time they need to spend on collecting firewood, allowing them to allocate their time to other productive activities.
An example of using firewood more efficiently is using a modern wood stove or fireplace insert that is designed to release small amounts of particulates, making it more efficient and less polluting.