Read each sentence carefully to find out whether there

Solution

This question examines tense consistency within a compound clause. When two actions are joined by “and” and describe parallel outcomes of the same condition, both verbs should maintain the same tense or modal structure. The first clause correctly uses “could be mitigated,” which expresses possibility using a modal verb. However, the second clause shifts to the simple present tense “is restored,” creating inconsistency. To maintain parallelism and logical uniformity, the second clause should also use a modal construction such as “could be restored” or “be restored.” Therefore, part (c) contains the error.