Either B. Human Services or D. Mental health services but I'm leaning more towards D
<span>The correct answer to the question given above is the fourth option which is the: big bang theory.
</span>Georges Henri Joseph Édouard Lemaître <span>proposed the theory of the </span>expansion of the universe and later proposed <span>the </span>Big Bang<span> theory of the origin of the </span>Universe.
The verb ser is conjugated accordingly:
yo: soy
tu: eres
el/ella/usted: es
nosotros: somos
vosotros: sois
ellos/ellas/ustedes: son
Two circumstances are when describing your job/occupation and describing anything in general.