During a period of prolonged sleeplessness, what danger is likely?

When Rachel, a toddler, visits a neighbor's home with her mother, she explores the room where the adults are sitting, but she will not leave the room. When her mother leaves to inspect the garden, she gets agitated and later rushes to her immediately when mother returns. Rachel's behavior demonstrates _____ attachment.

a. Insecure Avoidant b. Disorganized c. Secure d. Insecure Ambivalent

Compared to people with two eyes, those with only one eye lack the ability to ______ in determining distance

a. linear perspective c. convergence b. superposition d. texture gradients