The study of the situation covers a great deal of relevant material, but does not tackle the real issues ........... enough.
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disturbingly
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outrageously
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vaguely
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currently
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adequately
The context indicates the study fails to address issues properly or sufficiently. 'Adequately' means sufficiently or well enough, which fits perfectly. The other adverbs don't make sense in this context - we want to know if issues are being tackled ENOUGH.
To answer this question, we need to understand the meaning of the sentence and the meaning of each option.
The sentence states that the study of the situation covers a lot of relevant material, but it does not address the real issues sufficiently. We need to find an option that means "sufficiently" to complete the sentence appropriately.
Let's go through each option to determine which one fits:
A) disturbingly - This option means in a way that causes distress or unease. It does not convey the meaning of "sufficiently" or addressing the real issues adequately. Therefore, option A is incorrect.
B) outrageously - This option means in a way that is shockingly or offensively bad. It does not convey the meaning of "sufficiently" or addressing the real issues adequately. Therefore, option B is incorrect.
C) vaguely - This option means in a way that is unclear or imprecise. It does not convey the meaning of "sufficiently" or addressing the real issues adequately. Therefore, option C is incorrect.
D) currently - This option means at the present time. It does not convey the meaning of "sufficiently" or addressing the real issues adequately. Therefore, option D is incorrect.
E) adequately - This option means in a way that is sufficient or satisfactory. It conveys the meaning of "sufficiently" or addressing the real issues adequately. Therefore, option E is correct.
The correct answer is E) adequately. This option is correct because it fits the context of the sentence, conveying the meaning of addressing the real issues sufficiently.