The transcription factor $X$ binds a $10$ base pair DNA stretch. In the DNA of an organism, $X$ was found to bind at $20$ distinct sites. An analysis of these $20$ binding sites showed the following distribution:

What is the consensus sequence for the binding site of $X$?

1. $\textrm{NGTCNNNTNN}$
2. $\textrm{AGTCACNTGC}$
3. $\textrm{CACCTANCTG}$
4. $\textrm{ANNNACGNGC}$