Answer :
Final answer:
Stereoisomers are molecules with the same molecular formula and atom connectivity, but they differ in the arrangement of atoms in three-dimensional space. Stereoisomers include types such as geometric and optical isomers. So, the correct option is A. same, same, differ.
Explanation:
Stereoisomers have the same formula and connections between all the atoms but differ in how they are oriented in space, thereby making them stereoisomers.
Stereoisomers are a type of isomers where molecules have the same molecular formula and sequence of bonded atoms, which means they have the same structural skeleton. However, they have a different spatial orientation of their atoms. This difference in arrangement can lead to significant differences in the properties and biological functions of the stereoisomers. Two types of stereoisomers are geometric isomers and optical isomers, which include cis/trans isomers and enantiomers, respectively.