The reason the 1095-C is grayed out is that you do not need to report the 1095-C on your return. The 1095-C just says you had insurance and that question is no longer being asked. The 1095-C is just an informational document and you do not have to do anything with it.
The only form that has anything that needs to be entered is the 1095-A. If you received a1095-A means you received your insurance through the marketplace and that you may have received a supplement.
You answered the question correctly. All the IRS is interested in is if you received the 1095-A.
