Select the word you consider most appropriate to fill in the blank space. My brother is ___ punctual, but he is late today.

Step-by-step solution

'Normally' will be used in the blank space as the context of the blank is usually or in usual conditions. Normally: under normal or usual conditions; as a rule: Usually, ordinarily, commonly - in a normal manner. Normatively: implying, creating, or prescribing a norm or standard Primarily: for the most part; mainly. Basically: in the most essential respects; fundamentally. Hence, C is the right answer choice.