Final answer:
The passage has a positive connotation, emphasizing Mr. Smith as a valuable, influential, and strong leader.
Step-by-step explanation:
The overall connotation of the passage about Mr. Smith is positive. The passage highlights Mr. Smith's influential opinions, problem-solving abilities, and leadership qualities, all of which are described in a favorable light. Although his methods are said to be somewhat unusual, this is presented as a part of his unique and effective style. The use of words such as 'valuable', 'influential', and 'real leader' all carry positive associations. Therefore, the answer to the student's question is (b) Positive.