Answer:
The correct answer to this question is that none of these pairs are considered homonyms; they are known grammatically as homophones, and these terms tend to be confused because the two terms have the same prefixes, but in truth they are different.
Homonyms are literally words that are spelled identically, and have the same sounds, but their definition is different. An example of this is the word "check". This one word, spelled exactly the same, and with the same sound, has many different definitions and uses. Thus, it is a homonym.
Homophones, which are the case of these choice pairs, are words whose sound is the same, but they are spelled differently and their meaning is different. If we are talking about homophones, then, the correct pairs that would be homophones, these would be: concern;discern, mode;lode and way;weight. They all home similar sounds, but their spelling and meaning are different.
