class Mystery:

$"""$A mystery class without any implementation.

$"""$

pass

if $\_\_$name$\_\_==\text{'}\_\_$main$\_\_\text{'}$:

Group of answer choices

m $=$ Mystery$(\text{'}$what is this?$\text{'})$

m $=$ Mystery$()$

print$($m$)$

m $=$ Mystery$()$

None of the above. They would all raise an error.