Final answer:
The Asian cockroach is known for being a good flyer and is the correct answer to the question, as it has stronger flying capabilities than either the American or Brown cockroaches.
Step-by-step explanation:
The question "Which roach is a good flyer, both Ferrell and pearl domestic?" refers to the flying capabilities of different species of cockroaches.
The Asian cockroach (Blattella asahinai) is known for its relatively strong flying abilities compared to other roach species. American cockroaches (Periplaneta americana) can also fly but are not considered as adept as the Asian variety.
The Brown cockroach (Periplaneta brunnea), which might be the "brown" option mentioned, is less likely to fly, especially indoors. Thus, the correct answer would be the Asian cockroach, which is known for being a good flyer and is often mistaken for the German cockroach, which is not as proficient at flying.