Which one of the following is correct (i) A ratio is an arithmetical relationship of one number to another number. (ii) Liquid ratio is also known as acid test ratio. (iii) Role of thumb for current ratio is 2: 1 (iv) Debt equity ratio is the relationship between outsiders fund and shareholders fund

• A. Only (i), (ii) and (iii) are correct.
• B. Only (ii), (iii) and (iv) are correct.
• C. Only (ii) and (iii) are correct.
• D. All of the above.