Study this cladogram. Which statement is supported by this cladogram?

Organism D is the most primitive organism.
Organism A is a common ancestor of B, C, and D.
Organism D is a common ancestor of A, B, and, C.
Organism A is the most primitive organism.

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.