11. 'which' (parag.2) refers to;
"Phh.7.P. \( 18 " \)
A) The sheer drop
B) the floor
C) the safety of the floor
D) the visual cliff
12. Term 'visual cliff in the passage (Parag. 2) is used to refer to;
A) the idea that shows children by nature are aware of certain dangerous
B) the conclusion that it is not necessary to be overprotective around children
C) the theory that cliffs are dangerous to a child approaching it unsupervised
D) the setting used in a study to see if children can identify dangers on their own