Answer the following question, with explanation first.
The horse was decorated because it was taking part in something. What was it in?\nOptions:\n- countryside\n- parade\n- western movie\n- movies\n- rodeo

parade
A parade is a procession of people, usually organized along a street.

Decorated Horses are ridden and driven in Parade.

Horses take part in parade and so they are decorated.

.

So, the answer is parade