The title of Oscar Wilde's most successful play. The Importance of Being Earnest features a salient pun in the form of the word "Earnest<span>",
Earnest means </span><span>"<span>honest", and "truthful"
</span></span>At the very beginning of the play, we learn that Jack has created a convenient younger brother named Ernest. We don't know why he comes up with that particular name, but we’re guessing Jack had a laugh or two over it. Jack, Ernest,<span> fools his lady friends, all of whom have an obsession with the name "Ernest." Both Gwendolen and Cecily are in love with that name, based on an assumption that boys named Ernest will be as honest as the name suggests.
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Answer:
Short answer: "That" is used to introduce essential clauses or information, while the pronoun "which" is used to add non-essential or non-defining clauses. Also, these non-essential clauses are set off with commas.
Explanation:
First of all, the words "that" and "which" are both relative pronouns; this means, both introduce clauses that describe a noun previously mentioned. However, the pronoun "that" should be used only to introduce essential or defining clauses (information that cannot be omitted); for example "She is the woman that I love". On the other hand, the word "which" introduces information that is not essential or non-defining clauses; for example "The house, which is located near the sea, is stunning". Moreover, clauses introduced by which are set off in commas to show they are not essential.
