Which of the following statements is correct for the protozoan parasite Toxoplasma gondii?

(a) It is an obligate intracellular apicomplexan parasite producing tachyzoites 2 to 3 µm wide by 4 to 8 µm long
(b) It produces infective oocysts that are 9 to 11 µm wide by 11 to 14 µm long
(c) It infects cats, pigs, and sheep
(d) All of the above