Egomania is basically intolerably self-centred. In a more technical sense, it's an obsession -- an obsessive preoccupation with one's own self, usually in the form of following own impulses and have delusions of grandeur.
Megalomania is a rather loose term, and usually means have delusional fantasies of omnipotence (having unlimited or very great power, whatever 'power' might mean to that person). Interestingly, megalomania was the standard term for narcissistic personality disorder before the 1960s (so far as I recall from my psychology degree over 30 years ago).
"Mrs. Pontellier will ask Mrs. Ratignolle to help her learn how to better plan proper menus for her family" is the best option from the list but it should be noted that this is subjective.
Answer:
Ke batla sheba marotholi a likhoto tsa hau. Ke hloka sekaseka moiteli oo o nkhang hampe, ntumelle ka kopo!
I see I have not given time field
