Personal Essays can be structured by insight (organized according to the flow of ideas or insights) or by

Aevent (organized chronologically).
Ban informal style (sentence fragments, idioms, colloquial expressions, lots of contractions).
Ca formal style (proper, conventional English).

Verified Answer :

The correct answer to the question above is:

b. an informal style (sentence fragments, idioms,
colloquial expressions, lots of contractions).

Personal essays are based on personal viewpoints,
experiences and ideas as the name suggests. It requires informal style of
writing so as to appear conversational.