Compiler Basics & Lexical Analysis

Which of the following is/are true?

I. Keyword are determined during parsing of a language

II. The output of a lexical analyzer is parse tree

III. Type checking is done during parsing

A cross-compiler is a compiler _______.

__________ a part of a compiler that takes as input a stream of characters and produces as output a stream of token along with their associated syntactic categories.

Which of the following is a machine independent phase of the compiler?