_________ screens use thin sandwiches of glass containing a liquid-crystal material to display images

To estimate the after-tax cost of preferred stock you must:

A) multiply the cost of preferred by (1 - the tax rate). B) multiply the cost of preferred by (1 + the tax rate). C) multiply the cost of preferred by (the tax rate). D) None of the above because preferred dividend payments are not tax deductible for the firm.

What are information silos? What problems do they cause in a database?

What will be an ideal response?