Which of the following, if true, will strengthen Kiah's argument? A. Mambiki & Co. also hires contract workers during periods of high demand. B. Competing firms have hiked their prices recently. C. The workers at the plant are highly specialized and difficult to replace. D. The Nirobian government provides workers with generous social security benefits. E. Firms in the defense equipment industry in Nirobia set up their factories on land that has been leased by the government at concessional rates