Answer:

Dependability is a quality that refers to someone who can be relied upon to do what they say they will do. This means being trustworthy, responsible and accountable for their actions. Someone who is dependable is consistent and can be counted on to follow through on commitments.

In the given sentence, the speaker mentions that you can always rely on Alex, suggesting that he is someone who is dependable. This means that Alex is:

- Reliable: Alex is someone who can be trusted to do what he says he will do. He follows through on his commitments and is consistent in his actions.
- Responsible: Alex takes responsibility for his actions and is accountable for any mistakes he may make. He is someone who can be relied upon to act in a responsible manner.
- Trustworthy: Alex is someone who can be trusted to keep his word and act with integrity. He is honest and upfront in his dealings with others.
- Consistent: Alex is someone who is consistent in his actions and behavior. He does not fluctuate or change his behavior based on external factors.

Overall, being dependable is a valuable quality in any person. It allows others to trust and rely on you, which can foster positive relationships and lead to success in both personal and professional settings.