We can count backward by days or by weeks. Count a few weeks back to find that February $$6$$ is a Friday. Then count a few days back to find that February $$1$$ is a Sunday. 
If February contains Friday the $$13^{}\text{th}$$, what day of the week is February $$1$$st?． 
Options:
  - Sunday　 
  - Monday　 
  - Wednesday　 
  - Thursday　 
  - Saturday　 