B could be the only answer because its a personal pronoun
Http://www.facile-anglais.com/index.php/cours-et-lecons-apprendre-anglais/fiches-utiles-memos-anglais/80-mots-identiques-en-francais-et-en-anglais
Answer:
The federal budget is one of the most important policy instruments of our government. Through their budget decisions, our elected leaders fulfill their constitutional responsibilities, signal their policy priorities, and manage the federal purse.
It's true that language that is not based on fact cannot be damaging to other people or causes
