What is a translation unit

Skill/Topic: Fundamentals
A) JSP page can include the contents of other HTML pages or other JSP files.

B) When the JSP engine is presented with such a JSP page it is converted to one Servlet class and this is called a translation unit,

C) In a translation unit is that page directives affect the whole unit, one variable declaration cannot occur in the same unit more than once, the standard action jsp:useBean cannot declare the same bean twice in one unit.

D) All of the above