Which energy source did you rank as the worst option for the rescue team

The worst energy source for the rescue team is ; Coal

Although your question lacks some data a general answer within the concept of your question is provided

     Coal is the worst source of energy in the 21st century while the cleanest/safest source of energy in the 21st century is the nuclear energy. burning coal as a source of energy releases CO₂ into the atmosphere which leads to massive air pollution.

   Coal accounts for majority of air pollution that leads to death when used as energy source.

Hence we can conclude that the energy source that can be ranked as the worst option for the rescue team is Coal.  

Learn more : link

The worst option of energy source for the rescue team would be - nuclear, hydroelectric, combustion and fuel burning all are worst option fro max to less worst.

Explanation:

The best option for the energy source for the rescue team would be hand canker, lever as it is mechanical energy generator does not require anything but hand movement to generate energy to charge equipment and easily carry  anywhere.

Solar, wind energy are also helpful for rescue team but nuclear energy, hydropower, fuel burning energy source are risky, not handy and costly options.

Thus, the worst option are-  nuclear, hydroelectric, combustion and fuel burning energy source.

d. the weight of the book