What can you do with a picker element within Smartforms? Note: There are 2 correct answers to this question.

What can you do with a picker element within Smartforms? Note: There are 2 correct answers to this question.
A . You can use it to select an object from a list.
B. You can link picker and attachment elements together.
C. You can link two picker elements together.
D. You can use it to pick PNG files.

Answer: A,C