A. It's the progressive tense that indicates continuing action. It's something that's still going on, and the reason why it's called as progressive. This is formed with the "to be" verb in the present tense, and is combined with an -ing word.
D object of a preposition
Resilience is the process of adapting well in the face of adversity, trauma, tragedy, threats or significant sources of stress — such as family and relationship problems, serious health problems or workplace and financial stressors. ... In fact, the road to resilience is likely to involve considerable emotional distress.
