In The Comedy of Errors, the twin servants are both named Dromio.
They are Dromio of Syracuse and Dromio of Ephesus, two identical brothers separated after a shipwreck. Each serves a different twin Antipholus: Dromio of Syracuse serves Antipholus of Syracuse, while Dromio of Ephesus serves Antipholus of Ephesus. Their matching appearances drive much of the play’s frantic confusion.
The comedy is built around two pairs of identical twins. When the Syracusan brothers arrive in Ephesus, residents mistake them for their local counterparts. Orders, accusations, beatings, debts, meals, and romantic claims are repeatedly directed at the wrong person. The Dromios often provide the broadest physical comedy, but they also deliver many of the play’s puns and verbal jokes.
The names in the wrong options belong to other characters: Adriana and Luciana are sisters, while the two Antipholuses are the twin masters. A useful distinction is that “Dromio” is the shared personal name, while “of Syracuse” and “of Ephesus” identify which brother is meant.