Multiple Lines in Field

I have Adobe Acrobat Version 11, and I am trying to ensure that all text is visible in a field. I tried selecting the Multi Line feature, but the text is too large to be viewed on multiple lines in the size box I have. I tried using Auto Font size so that the size of the text would adjust for the length, but that does not seem to be working either.

Is there any way to ensure that texts wraps onto the next line and is visible in its entirety?

Thanks for any advice you can give!