When pulsars were first discovered, some of the astrophysicists involved briefly (i)____________ these types of stars might be (ii)____________ extraterrestrial intelligence. Specifically, the pulsar's periodic radiation pattern was initially interpreted as (iii)____________ rather than – as it turned out to be – the natural product of the spinning of a neutron star. A. ignored whether B. suggestive of C. a deliberate hoax D. thought that E. unrelated to F. an episodic phenomenon G. disavowed that H. evidence against I. a constructed code