Question

Which function deletes the first occurence of 3 in a list named listB ?

Answer 1

Answer:

$listB.remove(3)$

Explanation:

Given

Options A to D

Required

Which deletes the first occurrence of 3

The options show that the question is to be answered using the knowledge of Python.

So, we analyze each of the options using Python syntax

(a) listB.clear(3)

In python, clear() is used to delete all elements of a list, and it does not take any argument i.e. nothing will be written in the bracket.

Hence, (a) is incorrect

(b) listB(3)

The above instruction has no meaning in Python

(c) listB delete(3)

The above instruction as written is an invalid syntax because of the space between listB and delete.

Also, it is an invalid syntax because lists in Python do not have the delete attribute

$(d)\ listB.remove(3)$

This removes the first occurrence of 3