Which of the following is true of iron? a. It has the highest electrical conductivity of any metal.
b. It can exist in many alloys, usually with a carbon base.
c. It is highly valuable, has symbolic meaning, and widely used.
d. It is a durable metal and is commonly used for casting.

its c i think. .

"prior to 1910, these new artists were called neo-impressionists, and they believed that "modern paris" was the proper subject for their paintings."

this is the text provided by the program, disregard other answers, as they are confusing and based on loose knowledge of the subject.   : )