Answer:
C. Song or rhyme
Step-by-step explanation:
The memory aid is the testing technique in which the students are able to recall the things by practising them many times
Here in the given situation it is mentioned that I before E exclude C etc is an example of a mnemonic
So this represents the song or rhyme memory aid so that the mnemonic could be used as the following sequence is necessary in this
hence, the correct option is C.