Break the Argument: Background:
Ticks attach themselves to host animals to feed. Having fed to capacity, and not before then, the ticks drop off their host.
Condition 1:Deer ticks feeding off whitefooted mice invariably drop off their hosts between noon and sunset, regardless of time of attachment.
Condition 2:White-footed mice are strictly nocturnal animals that spend all daytime hours in their underground nests.
Question : Conclusion?We need to identify the option,which is true based on given information.
(A) Deer ticks all attach themselves to whitefooted mice during the same part of the day, regardless of day of attachment.
Time of detachment is given, we can say about attachment.(B) Deer ticks sometimes drop off their hosts without having fed at all.
Possible but not much support.(C) Deer ticks that feed off white-footed mice drop off their hosts in the hosts’ nests.
"White-footed mice are strictly nocturnal animals that spend all daytime hours in their underground nests."
Here strictly is the key that makes Option C true.(D) White-footed mice to which deer ticks have attached themselves are not aware of the ticks.
Not supported.(E) White-footed mice are hosts to stable numbers of deer ticks, regardless of season of the year.
Not supported.
Answer : OE