Using the Boston Consulting Group growth-share matrix, the managers of Wassername International determined that their business unit devoted to personal health monitoring devices was a "star." Based on this finding, which of the following strategies is likely to produce the best results? O Harvest as much cash flow as possible before shutting the business down. O Increase investment in the personal health monitoring unit to encourage future growth. O Immediately divest from the personal health monitoring industry. O Seek to lower costs in the personal health monitoring unit to increase market share