Answer:

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.
<em>Hence, (a) is incorrect</em>
(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

This removes the first occurrence of 3
Answer:
b.Floating Point (Float)
Explanation:
In Computer science, Floating Point (Float) contains floating decimal points which are denoted with 32 bits (single precision) or 64 bits (double precision).
Examples of floats are 1.7, 0.005, -2.23
Since Subana is writing a program which will calculate the mean average of a set of numbers by adding the numbers and dividing the result by the amount of numbers
The Floating Point (Float) variable type would be the most suitable for avg.
Answer:
It was designed to serve the science and military departmemt
Explanation:
It surely could not be designed for the purpose of instagram