According to 'Table F', interest on calls-in-arrears is charged at:

The correct answer is Option (4) → 10%

Where the articles of a company say nothing on the point, Table F applies, and it allows interest on calls in arrears at not more than 10% per annum, for the period from the date fixed for payment to the date of actual payment. Do not confuse this with calls in advance, on which Table F allows the company to pay up to 12%.