Provide an example of a homophone.

The correct answer is a pair and pear, which are homophones—words that sound the same but have different meanings and often different spellings. In this case, "pair" refers to two items that are typically used together, such as a pair of shoes, while "pear" is a type of fruit. Both words are pronounced the same way, despite their differing meanings and spellings, making them perfect examples of homophones.

The other options also feature homophones. For instance, "two" and "too" are pronounced the same, with "two" referring to the number and "too" indicating excess or also. "Read" and "red" share a similar pronunciation in certain contexts, such as in past tense usage, while "flour" and "flower" sound alike but represent different items, one being a baking ingredient and the other a blooming plant. Each of these pairs exemplifies the concept of homophones, but the question calls specifically for any single example, of which "pair" and "pear" fits well.