What Memory Problem Is Characteristic of People with Korsakoff's Syndrome

What memory problem is characteristic of people with Korsakoff's syndrome or prefrontal cortex damage?

A) They forget material that is presented visually, but they have normal memory for material they hear.
B) They fill in the gaps in their memory with a mixture of old information and wild guesses.
C) They have normal long-term memory, but essentially no short-term memory.
D) They remember facts, but they forget skills.