In the world of human-computer interaction, a device that provided information about the computer's activity to the human user would be referred to as a

To increase their sexual desire, some women take ______ supplements

Fill in the blank with correct word

A baby coos and pats his mother's face, but she does not respond. The baby makes repeated attempts through facial expressions, vocalizations, and body movements to gain her attention, all to no avail. The baby is now likely to

A) coo at a toy. B) adopt a still-faced expression. C) engage in self-comfort strategies. D) turn away and cry.