Which of the following statements tests for CONTENT equality?

Group of answer choices

if $($ x $==$ "Hello" $)\{...\}$

if $($ x$.$equals$($ "Hello" $))\{...\}$

if $($ x $!=$ "Hello" $)\{...\}$

if $($ x$.$contains$($ "Hello" $))\{...\}$

None of the above