This attributes the arithmetic difference and preserves the missing financing evidence.
Both companies have the same ROA; the multiplier creates the ROE difference.
With equal average assets, lower average equity produces the higher 3.00 multiplier.
The aggregate multiplier does not disclose liability type, terms, liquidity, off-balance-sheet exposure, or business risk.
Answer: A
Choice A is correct. Ridge's 10% ROA times a 3.00 multiplier produces 30% ROE; Summit's 10% ROA times 2.00 produces 20%. The decomposition attributes the difference but does not establish the cost or risk of Ridge's financing. A debt-to-total-assets screen requires a separately declared debt definition and same-date total assets; it is not another name for the average-balance equity multiplier. Summit's defined ratio is 27.27%; Ridge's is 59.38%.