Maria has been working at a garment manufacturing company for the past 15 years. she works hard and is indispensable to the company. in the past five years, she has been passed over for promotion to the position of ceo thrice because the management is not keen on appointing a woman as the ceo of the company. the given scenario exemplifies

    Glass ceiling

Explanation:  It is, in fact, a barrier to personal advancement that is not publicly acknowledged to exist but unofficially exists. It is called a glass barrier or ceiling because it is officially invisible (glass), does not exist, but in practice it does. The ceiling in the coin hints at the height of the barrier that this barrier sets, in other words it would be a career ceiling because it cannot be advanced beyond it. This type of barrier often affects women as well as minorities. As in the case of Maria, no matter how good one is at work, because of gender or minority, one cannot cross this glass ceiling, because it is simply an invisible barrier for the aforementioned minority members and women.

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the correct answer is :

{b.}   ( american workers lose job opportunities )

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    -sprinkles