Which of the following is correct?

• All members of photolithotrophic autotrophs are also members of algae, but not all members of algae are members of photolithotrophic autotrophs
• All members of algae are also members of photolithotrophic autotrophs, but not all members of photolithotrophic autotrophs are members of algae
• All members of photolithotrophic autotrophs are members of algae, and all members of algae are members of photolithotrophic autotrophs
• No member of photolithotrophic autotrophs is a member of algae