Odd one out: c) Mantery

Explanation:
Mosque, Temple, Church, and Mantery are all religious places of worship. However, the odd one out in this group is 'Mantery' as it is not a commonly known or recognized term for a religious place of worship. It seems to be a misspelling or a less common variation of the word 'Monastery'.

- Mosque: A mosque is a place of worship for Muslims. It is where Muslims gather for communal prayers, listen to sermons, and engage in religious activities.
- Temple: A temple is a place of worship for various religions, including Hinduism, Buddhism, and Jainism. It is where devotees come to offer prayers, perform rituals, and seek spiritual guidance.
- Church: A church is a place of worship for Christians. It is where Christians gather for religious services, such as Mass, prayers, and sacraments.

- Monastery: A monastery is a religious community or building where monks or nuns live, study, and practice their religious beliefs. It is typically associated with Christianity, particularly in Catholicism and Orthodox Christianity.

While all the other options refer to places of worship, 'Mantery' is not a commonly used term and may not be recognized as a religious place by many people. It is likely a misspelling or a less popular term for a 'Monastery'.