Refer to the information provided in Table 11.1 below to answer the questions that follow. Table 11.1 Number of Average Money Average Bond Interest switches Holdings Holdings Earned $1,200 $0 $0 $600 $600 $30 $400 $800 $40 $300 $900 $45 $200 $1,000 $50 1 ) Refer to Table 11 1 . If it costs $11 each time a bond is sold, the optimal average money holdings are A) $600 B ) $400. $300 D )