Present perfect tense is the present tense of the verb "have" combined with the past participle of the main verb.
An example of the verb "see" in the present perfect tense with the pronoun "I" as the subject is:
I have seen many movies, but nothing as good as <input favorite movie here>.
C. They made poorly constructed products and Struggled to make money for their families. The workers at the time had the mentality of needing to work as fast and efficiently as possible, so if they didn't have the machinery to do the job, they would use their hands, which led to poor products.
I think it's D. It sounds as if something of horror is out behind the screen.
The answer is a) situational irony.
Food is known to be good for helpful, however, in this situation, it was harmful.
