Answer :
To answer this question, let's consider how variable declarations work in Python, which is a high-level programming language used for various applications, including web development, data science, and more.
xyzp = 5,000,000: This declaration is actually correct, though unconventional. Python interprets the comma within a number as a tuple separator. Hence, this would assign xyzp to a tuple, which might not be the intention here, but technically it is syntactically correct.
xyzp = 5000 6000 7000 80: This declaration is incorrect. Python variables can be assigned a single value or a structured collection like a list, tuple, or set. The numbers need to be in a collection (e.g., a list or a tuple) or separated into multiple assignments.
x,y,z,p = 5000, 6000, 7000, 8000: This is a valid declaration in Python. It utilizes tuple unpacking which assigns the values 5000, 6000, 7000, and 8000 to x, y, z, and p respectively.
x_y_z_p = 5,000,000: Similar to the first declaration, this is syntactically correct but assigns a tuple to x_y_z_p.
Hence, the incorrect declaration is the one identified in option 2.
To understand why, let's break down some Python syntax rules relevant here:
- Variable names in Python can include letters, numbers, and underscores (_), but they must not start with a number.
- Multiple assignments in a single line with multiple objects must use a structure like a list or a separator such as a comma.
The correct option is: 2. xyzp = 5000 6000 7000 80
