Q2 - Which one of the following

[canylaw]

I see how D is TCR because it being true or false will affect the argument.But why is answer choice A wrong?

thank you for helping!!

[noah]

The conclusion is that the smell of the turtles' nest makes them come back to it after a long and far-reaching migration. Not much of an argument!

One gap, which (D) addresses, is whether turtles can actually smell those nests. If a turtle happen to always be outside of the range of nest-smell-detection, but one day makes a sharp left and swims quickly for the nest, can we say that the smell did it? If, as (D) suggests, we knew whether turtles were within the range of nest-smell-detection, then the argument could be evaluated - at least on that point.

(A) is out of scope. It might be tempting, because if the turtles only live 10 years, the argument seems suspect. But we already know they many live at least 15-30 years. What does it matter if the turtle lives for about 100 years (which I believe is how long they live!)?

(B) is irrelevant - we already know they go far away. How does it help us to know whether it's 50 miles or 500? We don't know how far the smell reaches!

(C) is sad, but out of scope. We are interested in the cases in which the nests are still there.

(E) is out of scope, though perhaps interesting!

[DevinD793]

How would you characterize this argument's flaw in reasoning? Lack of evidence to support a claim?