Unless things have changed the better option is to tick for multiple entries.
It has to be said that not all Embassies/Consulates follow the same protocols. Some quite happily issue multiple entry visa's and other's do not. Personally I'm not sure about the German standard approach.
Quite a few folks here have been issued with multiple entry visas with validity from 2 - 4 years. Very useful to have as it certainly saves plenty of time and trouble for any future trips to EU land.![]()