Step 1: Identify the subject.
The subject of the sentence is “Mike and Hero,” which includes two people. Therefore, the subject is plural.
Step 2: Apply subject–verb agreement rule.
In English grammar, a plural subject takes a plural verb. The plural form of the verb “to be” in the present tense is “are.”
Step 3: Analyze the options.
- (a) are: Correct; plural verb used for plural subject.
- (b) is: Singular form; incorrect for plural subjects.
- (c) am: Used only with the singular subject “I”; incorrect.
- (d) was: Past tense; does not fit as the sentence is in present tense.
Step 4: Constructing the correct sentence.
The complete sentence is: “Mike and Hero are from Japan.”
Step 5: Conclusion.
Thus, the correct answer is (a) are.