Drugs or other substances that can cause birth defects are known as

A teratogen is

What will be an ideal response?

Drews, Pasupathi, & Strayer (2008) investigated the impact of cell-phone and in-person conversations at the operational, tactical, and strategic levels of driving performance. They found:

a) deficits at both the operational and strategic levels of performance, for both types of conversations. b) deficits at both the operational and strategic levels of performance only for cell phone conversations. c) deficits at both the operational and strategic levels of performance only for in-person conversations. d) no deficits at all, in either conversation condition.