In a spin-off transaction, Company A distributes shares of its subsidiary to its existing shareholders. If the subsidiary has a book value of $500 million and Company A decides to distribute 60% of the subsidiary's book value to the shareholders, and the total number of outstanding shares of Company A is 50 million, what is the per-share cash distribution to the shareholders? a) $6 b) $8 c) $10 d) $12 e) $15