Final answer:
Growth hormone (GH) is a peptide hormone that is synthesized by the anterior pituitary gland and promotes body growth and protein synthesis. Therefore, the correct option is A
Step-by-step explanation:
Growth hormone (GH) is a type of peptide hormone. Peptide hormones are made up of chains of amino acids and are synthesized by the anterior pituitary gland. GH specifically promotes protein synthesis and body growth, making it an important hormone for development. Examples of other peptide hormones include antidiuretic hormone (ADH) and atrial-natriuretic peptide.
The multiple-choice options presented in the question were peptide, nucleic acid, steroid, and carbohydrate. The correct answer for the type of hormone growth hormone is is peptide. In comparison, nucleic acids are related to genetic information, steroids are a type of lipid-derived hormone, and carbohydrates are primarily energy sources and structural molecules in the body, not hormones.