Which of the following tasks could be attained using syntax trees in compiler design ?

(A) Type Checking
(B) Code Generation
(C) Code Optimization
(D) Error Handling

Choose the correct answer from the options given below :

Syntax trees (Abstract Syntax Tree – AST) are used in later compiler phases.

(A) Type Checking → Done using syntax tree ✔

(B) Code Generation → Uses syntax tree ✔

(C) Code Optimization → Uses syntax tree representation ✔

(D) Error Handling → Mainly done during lexical / syntax analysis ✘

Thus correct tasks:

(A), (B), (C)