Boolean to integer via Convert in C#: what value is assigned? d = Convert.ToInt32(!(30 < 20));

Introduction / Context:
This question ensures you know how Boolean expressions work in C# and how Convert.ToInt32 maps true/false to integers.

Given Data / Assumptions:

• Expression: !(30 < 20).
• Convert.ToInt32(bool) returns 1 for true, 0 for false.

Concept / Approach:
Evaluate the comparison, apply logical NOT, then convert Boolean to int using the framework conversion.

Step-by-Step Solution:

Verification / Alternative check:
Replacing Convert.ToInt32 with a conditional operator yields the same: int d = (!(30 < 20)) ? 1 : 0;

Why Other Options Are Wrong:
They contradict the true/false to 1/0 mapping or suggest syntax from other languages (Not is not C#).

Common Pitfalls:
Assuming C-style implicit Boolean-to-integer conversions; C# requires explicit conversions (here via Convert).

Final Answer:
A value 1 will be assigned to d.