Which option is a characteristic of resilience A. Low self-esteem

B. Sleeping

C. High self-esteem

D. Stress

I would say C: because with high self esteem means you keep going at something

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.