Что пропущено?
...you aunt a doctor? - Yes, she...
a) is, is b) are, is c) are, are ​

Are your aunt a doctor? — Yes, she is.  (b)

Перевод: Твоя тётя врач? — Да.

Collection (from Latin collectio - collecting, collecting) is a systematized collection of rare objects, united according to some specific feature, having internal integrity and belonging to a specific owner - a private person, organization, state.

Examples of

Baldin collection

Dzikov collection

Zoological State Collection Munich

Collections of the Herbarium of Moscow University (Unassembled collections in the Herbarium of Moscow University)

Brezhnev car collection

Collection of landmarks of the Russian Empire

Peggy Guggenheim Collection

Collection of seeds of cultivated plants Vavilov

Collection of modern religious art

Filippi collection

Frick Collection

Meteorite collection of the Russian Academy of Sciences

Imperial Collections Museum (Tokyo)

Museum of Private Collections

Museum of photographic collections

New collection A collection in programming is a program object that contains, in one way or another, a set of values of one or different types, and allows access to these values.

The collection allows you to write values to itself and retrieve them. The purpose of a collection is to serve as a repository for objects and provide access to them. Collections are usually used to store groups of objects of the same type that are subject to stereotyped processing. Various methods can be used to refer to a specific element of a collection, depending on its logical organization. An implementation may allow individual operations to be performed on collections as a whole. The presence of operations on collections in many cases can greatly simplify programming.