What is the main difference between total quality management $($TQM$)$ and continuous improvement $($CI$)?$

$($a$)$ TQM focuses on specific tools and techniques, while CI is a broader philosophy.

$($b$)$ CI emphasizes small, incremental improvements, while TQM aims for major breakthroughs.

$($c$)$ TQM is only applicable to manufacturing, while CI can be used in any organization.

$($d$)$ There is no significant difference between the two concepts.