1. A radical skeptic might be willing to doubt which of the following? (Points : 1)

3 + 5 = 8
Grass is green.
Cheese is fattening.
All of the above

I'll be glad to comment on your answer.

3+5=8

A radical skeptic is someone who is highly skeptical and doubts the validity of many commonly accepted beliefs. In the given options, a radical skeptic might be willing to doubt all of the statements mentioned:

1. 3 + 5 = 8: A skeptic might question the accuracy of basic mathematical operations and doubt that 3 + 5 equals 8.

2. Grass is green: A skeptic might challenge the assumption that grass is always green, considering factors like different species of grass or different environmental factors that could affect its color.

3. Cheese is fattening: A skeptic might question the commonly held belief that cheese is fattening, seeking scientific evidence or alternative viewpoints that challenge this notion.

Therefore, the correct answer is "All of the above."