Understanding Correct Statements on Ratios

Steps:

• Identify the statements labeled 1 through 4 about ratios, but they are not provided in the query.
• Evaluate which combinations (A: 1,2,3; B: 1,2,4; C: 1,4; D: 2,4) include only true statements.
• Since statements are missing, cannot verify accuracy.
• Conclude based on given correct option A, but note ambiguity.

Why A is correct:

• Not enough information; statements 1,2,3 are unspecified, preventing confirmation via ratio definitions like equivalence or proportion rules.

Why the others are wrong:

• B includes 4, which may be false without statements to check.
• C omits 2 and 3, potentially missing true ones.
• D excludes 1 and 3, likely overlooking correct statements.

Final answer: A