A scrub jay can remember when it cached a particular piece of food in a particular place, researchers have discovered, and tend not to bother to recover a perishable treat if stored long enough to haverotted.
(A)tend not to bother to recover a perishable treatif
(B)they tend not to bother recovering a perishabletreat
(C)tending not to bother to recover a perishable treat it
(D)tends not to bother recovering a perishable treat
(E)tends not bothering to recover a perishable treat it
...
(A)tend not to bother to recover a perishable treatif
(B)they tend not to bother recovering a perishabletreat
(C)tending not to bother to recover a perishable treat it
(D)tends not to bother recovering a perishable treat
(E)tends not bothering to recover a perishable treat it
...
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