Which option explains why an environmental group is interested in the project in the following scenario?

An environmental group is partnering with a team of chemical engineers to develop oil for machines that will increase their efficiency while decreasing the usage of fuel.

Decreased fuel costs will allow the group to have more money to focus on their issues.
Decreased fuel costs will allow the group to have more money to focus on their issues.

Environmentalists like to see increased power in machines to cut down on the amount of waste production.
Environmentalists like to see increased power in machines to cut down on the amount of waste production.

Sustainable machines are the primary goal of environmentalists.
Sustainable machines are the primary goal of environmentalists.

Decreasing fuel usage leads to a reduction in carbon emissions, which is a significant "green" issue.

The scenario is not indicative of the fact that the fuel cost has reduced.
The scenario is not indicative of the decreasing fuel cost that can help the environmentalist to focus on their personal issues.
The sustainability in terms of lower fuel usage has been mentioned but the scenario is not indicating towards the sustainable use of machinery.
The decrease usage of fuel is not only the main concern but also the increase in efficiency along with decreased usage of fuel.
The environmental group is working with the team of chemical engineers to produce an oil that can increase the efficiency of the machine but reduce the usage of fuel.
So, the environmental group is interested in increasing the efficiency or power of the machine without increasing the use of the fuel. This will help in reduction in waste liberation by the machine. This will help in reduction of the pollution which is the main concern for the environmentalist worldwide.

Hence, environmentalists will see increased power in machines to reduce the amount of waste production.

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