A promise to do something that is already under legal obligation to do the same thing is not consideration

Which of the following scenarios illustrates the use of processed materials in manufacturing?

a. No-Glut Inc. uses rice flour in the manufacture of gluten-free products. b. Zintec Sugar House uses sugarcane to produce white sugar. c. Pace, an automobile company, uses magnesium alloy wheels for its high-end cars. d. Reldex Steel Corp. uses blast furnaces in their manufacturing process.

In a tenant's valid assignment of a lease, the assignee becomes the new:

A. landlord B. lessor C. sublessee D. tenant