Descartes "dualism"refers to: Select one: a. the concept that all people have multiple personalities. b. the belief that the mind and body are distinct entities. c. the concept that science uses observation as a method and philosophy uses logical assumptions. d. the idea that psychology really has two foci; applied and basic research.

## Step 1<br />The question is asking for the correct definition of Descartes' "dualism". Descartes' dualism is a philosophical concept that was proposed by the French philosopher René Descartes. <br /><br />## Step 2<br />Descartes' dualism is the belief that the mind and body are distinct entities. This means that the mind and body are separate and distinct, but they interact with each other.<br /><br />## Step 3<br />The other options provided in the question do not accurately define Descartes' dualism. For example, the concept that all people have multiple personalities is not related to Descartes' dualism. Similarly, the idea that science uses observation as a method and philosophy uses logical assumptions, and the idea that psychology has two foci; applied and basic research, are not related to Descartes' dualism.