Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)

chmod +s sets the setuid bit on files or the setgid bit on directories, not the sticky bit.

chmod +t /tmp uses symbolic mode to add the sticky bit (represented as 't' in ls output) to the directory, leaving other permission bits unchanged.

chmod 1775 /tmp uses octal notation where the leading '1' encodes the sticky bit, '7' grants rwx to owner, '7' to group, and '5' (rx) to others - a common real-world setting for /tmp.

chmod 4775 sets the setuid bit (leading octal digit 4), which causes executables to run as the file owner, not the sticky bit.

chmod 2775 sets the setgid bit (leading octal digit 2), which causes new files in the directory to inherit the group, not the sticky bit.