15\nwhat do engineers use to test their designs of new technologies?\na. models\nb. polls\nc. reference…

15\nwhat do engineers use to test their designs of new technologies?\na. models\nb. polls\nc. reference materials\nd. pie charts

15\nwhat do engineers use to test their designs of new technologies?\na. models\nb. polls\nc. reference materials\nd. pie charts

Answer

Answer:

A. models

Brief Explanations:

Engineers use models to simulate and test the functionality, performance, and feasibility of new technology designs before full-scale production. Polls gather opinions, reference materials provide background info, and pie charts display data—none directly test designs like models do.