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Read the following statements: I. The process of drilling...

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Read the following statements:

I. The process of drilling automatically is too costly.

II. Automated drilling requires fewer employees.

III. Experienced drillers are becoming scarcer.

Choose the correct answer:

A
Only I is correct.

B
Only III is correct.

C
Both I and III are correct.

D
Both II and III are correct.

E
All three assertions are correct.