IMO C
The hognose snake puts on an impressive bluff, hissing and rearing back, broadens the flesh behind its head the way a cobra does, feigning repeated strikes, but having no dangerous fangs and no venom, eventually, if its pursuer is not cowered by the performance, will fall over and play dead.
A broadens the flesh behind its head the way a cobra does, feigning repeated strikes, but having no dangerous fangs and no venom,
B broadens the flesh behind its head the way a cobra does and feigns repeated strikes, but with no dangerous fangs and no venom,
C broadening the flesh behind its head the way a cobra does and feigning repeated strikes, but it has no dangerous fangs and no venom, and
D broadening the flesh behind its head the way a cobra does and feigns repeated strikes, but with no dangerous fangs and no venom, and
E broadening the flesh behind its head the way a cobra does, feigning repeated strikes, but with no dangerous fangs and no venom, and
C:
The hognose snake puts on an impressive bluff (HOW??)
BY - hissing and rearing back,
BY- broadening the flesh behind its head the way a cobra does and feigning repeated strikes, -
both parts are using -ing forms which is correct
but it has no dangerous fangs and no venom, and eventually, if its pursuer is not cowered by the performance, will fall over and play dead. --
use of 'but' shows a transition which makes sense here(the snake puts on an impressive bluff but what happens when the bluff doesnt work?)
so according to be answer should be C
E:
The hognose snake puts on an impressive bluff,
hissing and rearing back, broadening the flesh behind its head the way a cobra does, feigning repeated strikes, but with no dangerous fangs and no venom, --->>>> these things in the last seem to be just an addition to the 'hissing' and 'broadening' which is wrong. we need to emphasise on a new clause here (preferably with a 'but') as the author is talking about a contrast here (again, what happens when the bluff doesnt work)
in Choice D there is major parallelism error between 'broadening' and 'feigns', so it's not a contender.