C#.NET — Control flow semantics: switch, goto/continue, jump statements, and do loops. Which statements are correct?

Introduction / Context:
This conceptual item asks you to pick the accurate descriptions of several C# control-flow constructs: switch, jump statements (break/continue/goto/return), and the do loop. The distractors intentionally conflate goto and continue behaviors with switch case labels.

Given Data / Assumptions:

• Five statements cover switch, goto, jump semantics, continue, and do.

Concept / Approach:
Recall: switch selects among cases; jump statements cause immediate transfers of control; continue skips to the next iteration of the current loop, not to a switch label; the do statement executes the body at least once, then repeats until the expression becomes false.

Step-by-Step Solution:

Verification / Alternative check:
Write micro-examples using each construct and observe the control flow in a debugger; the behaviors align with the reasoning above.

Why Other Options Are Wrong:

• A/C/D include false statements 2 or 4, so they cannot be correct.

Common Pitfalls:
Assuming continue can send control into arbitrary labels or switch cases; misunderstanding that do executes once before the first test.

Final Answer:
1, 3, 5