What property conditions is a possessor of property obligated to warn licensees of?

A) Dangerous on-premises conditions that he should reasonably discover
B) Dangerous on-premises conditions that he knows about
C) Dangerous on-premises conditions,regardless of whether a licensee is likely to discover them
D) Dangerous on-premises conditions that the licensee is unlikely to discover

The quality of paper is measured by

A) length and width.
B) weight and cotton content.
C) color and texture.
D) style of letterhead and corporate logo.