A treasury manager needs to move $200,000 from one corporate account to the firm's primary account. Moving the funds by wire will cost $15 while moving the funds by ACH will cost $0.50. The ACH takes 1 day longer to clear. The firm's account earns an earnings credit rate of 0.75%, and the required reserve ratio is 10%. If the firm's opportunity cost of funds is 4%, what is the minimum transfer balance that justifies a wire transfer?

	a.	$88,685.95
	b.	$86,546.15
	c.	$159.172.93
	d.	$149,084.51