An just got back this afternoon from his trip to europe, and he is happy, excited, but exhausted. the sentence above should be written as:
a. ian just got back this afternoon from his trip to europe, and he is happy, full of excitement, but exhausted.
b. ian just got back this afternoon from his trip to europe, and he is happy, excited, but is exhausted.
c. ian just got back this afternoon from his trip to europe, and he is happy, is excited, but exhausted.

B). Ian just got back this afternoon from his trip to Europe, and he is happy, excited, but is exhausted.

Explanation:

The correct version of the given sentence is displayed in option B as it involves the repetition of verbs that proposes parallel construction of the sentence that organizes and balances the description provided. As we know that coordinating conjunctions like 'but' employs a similar form of verbs after it(as applied previously in the sentence) in order to offer a parallel meaning to the sentence. Similarly, option B appropriately follows('is exhausted') the previous verb 'is happy'. Thus, option B is the correct answer.

the civil rights act was passed on april 9, 1866 by a republican dominated congress. it was passed over president johnson's veto, in an effort to push back against discrimination of african americans.