To remove the null production from the given grammar, we can follow these steps: 1. Identify Nullable Variables: Find the nullable variables (variables that can derive ε). 2. Eliminate Nullable Variables: Remove the ε-productions and update the grammar. Let's begin: Given Grammar: P: S -> ASA / ab / b    A -> B    B -> b / ε Step 1: Identify Nullable Variables    - B is a nullable variable since it can derive ε. Step 2: Eliminate Nullable Variables    - We will remove ε-productions for B and update the productions of A accordingly.    Updated Productions:    P: S -> ASA / AS / SA / A / ab / b    A -> B    B -> b This modified grammar no longer contains ε-productions and has removed null production.