The correct answer is D. quality control.
Quality control is of utmost importance when it comes to providing customers with products or services. You need to check whether that product is ready and without faults before you publish it and reveal it to the public. This is done so as to avoid your customers being unsatisfied with the product/services.
Answer:
d. superlative
Explanation:
Assuming that the underlined adjective is <u>the most difficult</u>, it should be superlative, because the subject is the hardEST of all subjects.
The basic function that any switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only. This thing differentiates switches from hubs. Hub gets the information and forwards that to every other device in the network.
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They think it’s impossible for humans to age