Institution: SONALI BANK LTD Exam: Sonali Bank Ltd - Assistant Programmer - 26.08.2016 ||
Topic: ICT (তথ্য ও যোগাযোগ প্রযুক্তি), Subject: Computer and ICT (তথ্য ও যোগাযোগ প্রযুক্তি)

Best Answer Explained in Below-:

Actually, the correct choice for the question "Which keyword must be used to inherit a class in Java?" is **A) extends**. The keyword `extends` is specifically used in Java to indicate that a class is inheriting from a parent (or superclass). When you create a class that inherits features and behaviors (attributes and methods) from another class, you employ the `extends` keyword.

For example:

```java
class Parent {
// Parent class properties and methods
}

class Child extends Parent {
// Child class inherits properties and methods from Parent
}
```

In this code snippet, `Child` inherits from `Parent` using the `extends` keyword.

On the other hand, the keyword `super` is used within subclasses to call methods or constructors from the parent class. The `this` keyword refers to the current object instance, while `extent` is not a valid keyword in Java. Therefore, the correct answer to the question is indeed **A) extends**.