Assume that instead of a third party removing the safety switch, Mitsubishi Caterpillar Forklift America, Inc. (the seller) had manufactured the forklift with a defective safety switch. The company had tested numerous safety switches and could not have known that this one was defective. Under these facts, Mr. VeRost may recover under what theory or theories of product liability?

strict liability or product liability for a manufacturing defect

Explanation:

The rules of strict liability state that someone will be strictly liable – liable without a victim having to prove negligence or fault – for an accident in certain circumstances while Strict product liability laws state that a manufacturer or distributor of a defective product will owe an injured person compensation even if the defendant took reasonable steps to prevent the defect.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."