The finding that attention can spread within an object, thereby, enhancing detection at other places within the object is referred to as
a. ? spatial drift
b. ? spreading activation
c. ? same-object advantage
d. ? object location invariance

The finding that attention can spread within an object, thereby, enhancing detection at other places within the object is referred to as same-object advantage effect (SOA). The effect is that the performance of observers who are judging two targets is better (faster and/or more accurately) when they are from the same object than when they are from different objects.

I'd go for the one that says that knees are fulcrums, lower legs are levers and the ankles hold loads.hope it ,happy homework/ study/ exam!