But I see you are posting from Mac with OX 10.11.6.  That is too old to install the Desktop program.  Do you have another computer or can you update your Mac?
Mac System Requirements     <a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1899173-minimum-system-requirements-for-turbotax-mac-software">htt...>

Or you can use the Online web version.

Thanks! My current Mac is 10 years old so the system software has been updated as far as I dare. Hoping to get a new laptop this year. Until then, I filed an extension (using my 'best guess').

Many thanks to TurboTaxKatrinaB ! ! !
No one at Intuit Support (I made 3 or 4 calls) was able to answer my question. That really makes me wonder about their training. I would think Support could have at least hooked me up with someone who had some idea of a good direction in which to search for the answer I needed. Better tighten up your ship, Intuit ! Here's a thought to consider: PLEASE tell the Support people there's such a thing as 'Enrolled Agents' who are knowledgeable about the details of specific programs. And give the Support people a way of contacting such agents when a caller has a detailed question.

Actually it looks like 10.  I opened my Home & Business and went to FORMS.  Did Open Form and opened the Schedule C Worksheet.   I have 3 already in my return and it says 3 of 10.