Radiation . Occurs is solids.
Occurs in liquids.
Requires physical contact between molecules
Is the method of heat transfer used by the sun

Option (d) is the correct answer.

Explanation:

Radiation is defined as electromagnetic energy that travels in space in the form of waves or particles.  This means that heat energy will always travel from a warmer object to a colder object.  For example, radiations coming from the Sun are able to transfer heat energy to the substance on which they fall.  Thus, we can conclude that radiation is the method of heat transfer used by the Sun.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates