Answer:
C. Statement [3]
Explanation:
Statement 3 is the inferential statement in the argument, because from the fact that the Japanese companies make group decisions (which is the main reason given for the efficiency of Japanese companies), it is inferred, by logic, that the Japanese companies do not rely on single individual decisions.
No. It should be, 'Oliver will compete in the dance competition tomorrow.' or 'Oliver competed in the dance competition yesterday.'