What type of climate lacks extreme temperatures?

The choice of a temperate climate as the correct answer is appropriate because temperate climates are characterized by moderate temperatures, where neither extreme heat nor extreme cold is predominant. This type of climate generally experiences four distinct seasons: spring, summer, autumn, and winter. The seasonal variation allows for a relatively stable temperature range throughout the year, avoiding the drastic temperature shifts that are common in other climate types.

In contrast, polar climates are known for their extremely low temperatures, particularly in winter, and do not have the moderate temperature swings found in temperate regions. On the other hand, tropical climates experience high temperatures year-round, often accompanied by significant rainfall, while continental climates tend to have harsh winters and hot summers, leading to more extreme temperature variations. Thus, among the provided options, the temperate climate is clearly defined by its lack of extreme temperature variations, making it the correct choice.