Which item is a removable electronic storage device rather than an optical disc?

### Why this is right A pen drive is removable electronic storage. The other three choices are optical disc media. ### The concept Storage types can be classified by their physical medium. A pen drive is a portable electronic device containing storage, while CD-R, CD-RW, and DVD are optical discs. All can store data, but they are not the same type of medium. ### The other options - **B. Compact Disc Recordable (CD-R)**: This is optical disc media, generally intended for one-time recording. - **C. Compact Disc Rewritable (CD-RW)**: This is optical disc media that can be erased and recorded again. - **D. Digital Versatile Disc (DVD)**: This is an optical disc format. ### Terms - **Electronic storage**: Storage that uses electronic components to retain data. ### Remember A pen drive is removable electronic storage; CDs and DVDs are optical discs.