Answer 1

Containership is the ability of a class to contain objects of different classes as member data.

This thread will be helpful for you :

https://www-differencebetween-com.cdn.ampproject.org/v/s/www.differencebetween.com/difference-between-inheritance-and-vs-containership/amp/?amp_js_v=a2&amp_gsa=1&usqp=mq331AQA#referrer=https%3A%2F%2Fwww.google.com&amp_tf=From%20%251%24s&ampshare=https%3A%2F%2Fwww.differencebetween.com%2Fdifference-between-inheritance-and-vs-containership%2F

https://www.quora.com/What-is-containership-and-how-does-it-differ-from-inheritance

Thanks