Recognise the festival from the matching custom.
Christmas has a Christian background: Christians celebrate the birth of Jesus. Decorating a Christmas tree is a visible custom associated with this festival. Its religious meaning and the way a home is decorated are different matters.
To answer, sort the four images in your mind: tree, eggs, costume and pumpkin. The decorated tree belongs to Christmas here. The answer claims neither that this custom exists only in Germany nor that everyone in Germany follows it.
The other three answers
The other answers suggest different festivals.
hiding colorful eggs
Coloured eggs are associated with Easter. Hiding eggs is therefore not the Christmas custom sought here.
dressing up with masks and costumes
Masks and costumes fit occasions such as carnival. Dressing up can have various purposes; it is not the matching Christmas answer here.
putting pumpkins in front of the door
Pumpkins outside a door especially suggest Halloween and autumn decorations. The object sought for Christmas is the decorated tree.
A custom is not a test of belonging.
People may celebrate Christmas religiously, as a family occasion, through selected customs, or not at all. A tree in a home does not reliably establish the beliefs of the people living there.
The question tests a typical association. It does not prescribe a particular tree species, ornament colours, a day for putting it up or a uniform programme of celebrations.
Christmas · Protestant Church in Germany ↗Christmas: decorate a tree. Easter: coloured eggs.
Match the activity to the festival without turning it into an obligation for everyone.
Three words for this question
- der Brauchcustom
- An established or familiar practice for an occasion.
- schmückento decorate
- To add ornaments or decorative objects to something.
- der Anhängerhanging ornament
- An object hanging from a branch as decoration in this context.