"which forms of light are lower in energy and frequency than the light that our eyes can see"

Electromagnetic radiation covers a wide spectrum of which we can only see an extremely small sliver (wavelength between 390 nm and 740 nm).

The electromagnetic radiation with a wavelength greater than 740 nm meets the given criterion. This mainly consists of infrared, microwave, and radio waves. 

If you want to see something really interesting, Google the wavelength of Hawking radiation! 

The best answer is (a) which is universal law is in effect at all times. it is constantly at play in everything we do and governs our lives. it is also important to note that universal law applies to not only everything on earth, but everything in the universe as well, which is another reason why it is in effect at all times.