Binary result format (fundamentals): In binary arithmetic, the written result (sum) is expressed using only the digits 0 and 1. Evaluate this statement.

Introduction / Context:
This question checks the most fundamental property of binary notation: regardless of how addition is carried out internally (with carries and intermediate logic), the written result in base-2 uses only the symbols 0 and 1.

Given Data / Assumptions:

• We are discussing standard base-2 positional representation.
• Arithmetic may generate carries between bit positions.
• We care about the final, recorded digits of the sum.

Concept / Approach:
Binary numbers are expressed with two symbols. During addition, each bit position computes a sum bit (0 or 1) and possibly a carry to the next position. No matter how many carries propagate, each output digit remains 0 or 1. The process may widen the word (e.g., an extra most-significant bit), but the alphabet of symbols does not change.

Step-by-Step Solution:

Verification / Alternative check:
Example: 1011 + 0111 = 10010. Even with multiple carries, the digits in the result are still only 0s and 1s.

Why Other Options Are Wrong:

Common Pitfalls:
Confusing intermediate analog voltages or adder internals with the symbolic numeric result.

Final Answer:
Correct