Consider the command: cat $<$ file$1>>$ file$2|$ file$3$

A$.$ file$1$ content will be appended to file$2$ and finally stored in file$3$

B$.$ file$1$ content will be appended to file$2$ and file$3$ will be ignored $$

C$.$ file$2$ and file$3$ will have same content

D$.$ syntax error