> ケーキは **お** 好きですか

So I started learning Japanese and something caught my attention quite often.

In some sentences there is an お in front of a verb. What is it doing?

How does it affect the sentence. Can I let the お out?
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2019-12-31T23:30:02.980
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2020-01-01T01:49:06.763
2020-01-01T01:49:06.763
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question
grammar honorifics prefixes
What does お do in ケーキはお好きですか?