Please submit your concern

Explanation:

Consider the solution to first question of this set.

For widgets ≤ 100, no test is required.
For 100 ≥ widgets ≤ 200 test 1 is preferred.
For widgets ≥ 200 test 2 is preferred.

If there are 120 widgets, he should go for test I as it is cheaper.

Hence, option (d).

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