Suppose AVC = $113 when the firm produces 130 units of output. Then the firm's fixed cost amounts to
a) $1,388, and its profit amounts to $5,143
b) $3,000, and its profit amounts to $12,500
c) $1,560, and its profit amounts to $6,500
d)$1,510, and its profit amounts to $6,500
e) $2,760, and its profit amounts to $11,500