Identify the works written by Richard Brinsley Sheridan:
A) Richelieu
B) St Patrick’s Day
C) The Duenna
D) The Citizen of the World
E) Irene
Choose the correct answer from the options given below:

The correct answer is B & C (which corresponds to St Patrick’s Day and The Duenna).

Here is a step-by-step breakdown of the works written by Richard Brinsley Sheridan and the other authors mentioned in the options:
1. St Patrick’s Day (Option B) is a farce written by Richard Brinsley Sheridan. It was first performed in November 1775.
2. The Duenna (Option C) is a three-act comic opera, largely written and composed by Richard Brinsley Sheridan with music by his father-in-law Thomas Linley the Elder and his son Thomas Linley the Younger. It was first performed in November 1775 and was one of the most successful stage productions of its era.
3. Richelieu (Option A) is a historical play written by the English novelist and playwright Edward Bulwer-Lytton in 1839, famous for the line "The pen is mightier than the sword."
4. The Citizen of the World (Option D) is a collection of letters written by the Irish author Oliver Goldsmith, first published in 1762.
5. Irene (Option E) is a tragedy written by Samuel Johnson between 1736 and 1749.

Therefore, only statements B and C identify works written by Richard Brinsley Sheridan, making B & C the correct choice.