What is the difference between a good and a service in operations management?

$($a$)$ Goods are tangible$,$ services are intangible.

$($b$)$ Goods are produced, services are delivered.

$($c$)$ Goods are high$-$cost$,$ services are low$-$cost$.$

$($d$)$ Goods have a longer life cycle, services are short$-$lived??????