Saint Thomas gave a specific place to the angels in his work as he believed that they were an essential element of the christian mystery. The key reason was that <u>he was quite involved in the divide chain and willing to validate the existence of almighty through the figures of angels</u>. He says that '<u>angels are the blessed creations and messengers of God. They are the impalpable spirits of divine power of intelligence which is quite close to the almighty.</u>' Thomas believed that they have been assigned for specific roles by God himself which include; 'worship of almighty, implementation of physical laws and ordering of God's creation, and being the messenger of god' to deliver his messages(like Gabriel delivered to Virgin Mary). Thus, <u>options B and D</u> are the correct answers.