Final answer:
Mr. Collins is a clergyman, and Elizabeth and her father perceive him as formal, pompous, and overly concerned with social standings based on his letter.
Step-by-step explanation:
Mr. Collins's occupation is that of a clergyman. From the tone and content of his letter, Elizabeth Bennet and her father, Mr. Bennet, deduce that Mr. Collins is a formal and pompous individual who is very much concerned with social status and his own importance. Elizabeth finds him to be pedantic and lacks genuine understanding or self-awareness, while Mr. Bennet finds amusement in his cousin's self-importance.