In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. ________ the many existing cyber warfare scenarios, not excluding a coordinated cyber attack that ________ sabotage multiple infrastructure assets, erecting proper defences is ________. Anonymity and low cost have meant that __________ small disaffected groups — apart from hostile states and official agencies — could ________ to cyber techniques. For blank 98: "erecting proper defences is ________."
- Avital
- Bvitality
- Cto vital
- Dvitalness
Solution & Step-by-step Explanation
The sentence requires a predicate adjective following the linking verb "is" to describe the importance of erecting defenses. "Vital" (meaning absolutely necessary or important) is the appropriate adjective form. "Vitality" and "vitalness" are nouns, which do not fit contextually.