Lyme disease, which begins with a bull's eye rash, occurs when one is bitten by a tick carrying:

Which of the following shows a student portraying a positive image during an interview for an externship?

A. Ellen is chewing gum during her interview. B. Sam arrives right on time for his interview. C. Karen arrives prepared with a list of questions to ask about the externship site. D. Eliza arrives dressed for her interview in a brightly colored shirt and a miniskirt. E. Tomas arrives for his interview in a polo shirt, which displays his multiple tattoos on his forearms.

The tray used for alginate impressions is (are) ____________

a. perforated b. rim locked c. either a or b d. neither a nor b