Which of these are part of Aeschylus’ Oresteia Trilogy?
A) Agamemnon
B) The Libation Bearers
C) Antigone
D) Oedipus at Colonus
E) Electra
Choose the correct answer from the options given below:

The correct answer is A and B.

To understand why this is the correct choice, let us examine the plays listed in the question and their authors:
1. Agamemnon (A): Written by Aeschylus, this is the first play in the Oresteia trilogy. It describes the return of Agamemnon, King of Argos, from the Trojan War, and his murder by his wife, Clytemnestra.
2. The Libation Bearers (B): Also written by Aeschylus, this is the second play in the Oresteia trilogy. It deals with the reunion of Agamemnon's children, Electra and Orestes, and their revenge against Clytemnestra.
3. Antigone (C) and Oedipus at Colonus (D): These are tragedy plays written by Sophocles, belonging to his Sophocles' Theban plays (along with Oedipus Rex). They are not part of Aeschylus' trilogies.
4. Electra (E): While there are plays named Electra by both Sophocles and Euripides, Aeschylus' play dealing with Electra is titled The Libation Bearers.

Therefore, only statement A (Agamemnon) and statement B (The Libation Bearers) are part of Aeschylus’ Oresteia Trilogy (the third being The Eumenides). This matches the correct option A and B.