Your mom wants to purchase a laptop computer. She said she wants her new computer to be able to play her DVDs so she can listen to music and wants to know what type of optical drives will play her disk. Which type of drive should she look for?

she should look for DVD-ROM drives

Explanation:

optical drives play both DVDs and CD's as well as blue-ray Discs because they use a laser light to either write or read data from CD's, DVDs and blue-ray Discs. although there are two types of optical drives: the one that plays only CD's and the one that plays DVDs as well as blue-ray Discs.

so to be specific on playing just DVDs she should look to install a DVD-ROM drive in her laptop. or an optical drive capable of writing and reading data from a DVD

DVD multi-drive if you want to be specific, the question's a bit strange, optical drives have been standard for a long time, (CD/DVD) they will play any DVD