A sample can have more than one:

A sample can indeed have more than one mode, which is why the mode is the correct answer. The mode is defined as the value that appears most frequently in a data set. In the case where multiple values occur with the same maximum frequency, the sample can be described as multimodal, meaning it possesses more than one mode.

For example, in the data set {1, 2, 2, 3, 3, 4}, both 2 and 3 are modes because they appear with the same highest frequency. This contrasts with other statistical measures: a mean is a calculated average, so it can only have one value; the median, being the middle value when a data set is ordered, is also singular; and the range, which measures the difference between the highest and lowest values, is likewise a single value representing that spread. Hence, the mode uniquely allows for multiple values in a sample, making it the only option among the choices that can have more than one representative value.