どちら
どちら
pronoun
which (of two); where (polite)
1.
which one (of two)
Used to ask about a choice between two options. The polite form of どっち.
2.
where (polite)
A polite way to ask where someone is from or where they are going.
3.
who (polite)
A polite way to ask who someone is, often used in business contexts.