Naming Query Column Name Of Resulting Table Name From Query

I need to name make the name of a column the same as the name of a table from the result of a sql query.. here is the assignment question below..I can't figure out how to get the name of the table to be inputed as the column name..

Write a script that uses dynamic SQL to return a single column that represents the number of rows in the first table in the current database. The script should automatically choose the table that appears first alphabetically, and it should exclude tables named dtproperties and sysdiagrams. [highlight=#ffff11]Name the column CountOfTable, where Table is the chosen table name.[/highlight]
Hint: Use the sys.tables catalog view.

I can figure out the rest. and actually have alredy done it, but i cannot figure out how to do the part that is highlighted above. I looked at lots of things on google to figure it out but no luck..Can some just give me some directlon or an example..