What would happen if you click the highlighted button in the Control Source property?

Property Sheet

Selection type: Text Box

$21$

PriceAdult

Format Data Event Other

All

Name

PriceAdult

Label Name

Label$1$

Control Source

Format

Currency

Decimal Places

Auto

$<$

OA list of all the tables and the queries is displayed.

The Expression Builder dialog box opens.

The Query Builder opens.

The Relationship window opens.