The correct answer is D. Humiliation : Exaltation.
Ecstasy and gloom are opposites, just like humiliation and exaltation. Congratulation is a positive thing that is said to someone who has done something good, while occasion is a specific time or event. Diligent means working hard and being careful, while successful means achieving a desired result. Measure is a way of determining the size, amount, or degree of something, while scale is a device for measuring weight or length.
In the analogy, ecstasy is to gloom as humiliation is to exaltation. This means that ecstasy is the opposite of gloom, just like humiliation is the opposite of exaltation. Ecstasy is a feeling of great happiness or joy, while gloom is a feeling of sadness or depression. Humiliation is a feeling of shame or disgrace, while exaltation is a feeling of great pride or joy.
The other options do not make sense in the analogy. Congratulation is a positive thing that is said to someone who has done something good, while occasion is a specific time or event. Diligent means working hard and being careful, while successful means achieving a desired result. Measure is a way of determining the size, amount, or degree of something, while scale is a device for measuring weight or length.