add missing conjunction in audit options radio buttons

src/app/dars/new-degree-audit-dialog/new-degree-audit-dialog.component.html

@@ -48,7 +48,7 @@
           </mat-radio-button>
           <mat-radio-button value="future">
             Previous, current, and future terms<br />
-            <span>Includes courses already completed, enrolled courses that are in progress, enrolled courses that have not started.</span>
+            <span>Includes courses already completed, enrolled courses that are in progress, and enrolled courses that have not started.</span>
           </mat-radio-button>
           <mat-radio-button value="current">
             Previous and current terms<br />

src/app/dars/new-what-if-audit-dialog/new-what-if-audit-dialog.component.html

@@ -69,7 +69,7 @@
             </mat-radio-button>
             <mat-radio-button value="future">
               Previous, current, and future terms<br />
-              <span>Includes courses already completed, enrolled courses that are in progress, enrolled courses that have not started.</span>
+              <span>Includes courses already completed, enrolled courses that are in progress, and enrolled courses that have not started.</span>
             </mat-radio-button>
             <mat-radio-button value="current">
               Previous and current terms<br />