This is kinda silly. The writer asking this question may not be aware that Lutherans are Christians. Lutheran is a Christian denomination. So there is no need to post 2 distictive catagories such as Christian or Lutheran. All lutherans are Christians. However not all Chrsitians are Lutherans. If you wanted to distinguish different types of Christians and thier different beliefs in Christian Doctrine, then you should have labeled it something like this:

What Christian faith and doctrine do you hold to?
A) Catholic
b) Lutheran
c) Presbyterian
d) Baptist
e) Pentecostal, assemblies of God
f) Non-denominational denomination
I hope that clears things up a bit. Sorry but before you post things perhaps it would be better to understand what your posting.