Which signal word indicates an example context clue?

The signal word "For instance" is a clear indicator of an example context clue because it explicitly introduces an example that follows. When a writer uses this phrase, they signal to the reader that what comes next will illustrate or clarify the point being made, sharing a specific case or instance that embodies the larger concept. This helps readers understand the concept more thoroughly by providing a tangible example.

In contrast, the other choices serve different purposes in writing. "However" typically indicates contrast or exception, "Although" introduces a concession or comparison, and "Therefore" suggests a conclusion or result. None of these indicate providing an example, making "For instance" the only option that appropriately fits the description of an example context clue.