Question

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Explanation:

Step1: Identify elk-treating doctors

Elks are in the overlap of Dr. Tanaka and Dr. Moore's circles.

Step2: Count animals for (b)

List animals in Tanaka/Moore circles: Koalas, Quails, Birds, Elks, Frogs, Rabbits, Zebras, Horses. Count = 8.

Step3: Identify single-doctor animals

• Only Tanaka: Koalas
• Only Moore: Zebras, Horses, Goats
• Only Pham: Snakes, Pigs, Llamas, Turtles

Answer:

(a) Dr. Tanaka, Dr. Moore
(b) 8
(c) Koalas, Zebras, Horses, Goats, Snakes, Pigs, Llamas, Turtles