单项选择题:
An analyst does research about margin transaction. An investor purchases mon shares at $ 25 per share on margin and deposits just enough money to cover the 65% initial margin requirement. If the maintenance margin requirement is 30%, the share price below which the investor will first receive a margin call is closest to:（）
A. $11.54 B. $12.50 C. $19.70
网友回答
答案：B
解析: $25×(1-65%)/(1-30%)=$12.50。