problem: Tri-State Industries has both common & noncumulative preferred stock outstanding. The dividends on these stocks are 1.35 dollar each quarter for the common & 2.10 dollar each quarter for the preferred. The company has not paid any dividends for the past three quarters but is expected to pay dividends on both the common & the preferred stock next week. find out the minimum amount the firm must pay per share to its preferred stockholders next week if it plans to pay a common dividend?

[A]    $4.20

[B]    $6.30

[C]    $8.40

[D]    $0

[E]    $2.10