Answer:
1.His sister Rosemary was born with a mild mental disability.
Explanation:
President John Kennedy felt the connection to people leaving with disability as a result of the experience with a member of hi own family. His sister, Rosemary, who was 14 months younger than him was borned with intellectual disability.
 
        
             
        
        
        
<em>Answer:</em>
<em>observer effect     </em><em>                                                </em>
<em>Explanation:</em>
<em>In psychology, </em><em>the observer effect is described as a phenomenon in which there's a possibility that a specific act or behavior of observation might affect the different properties of the thing (what) is being observed. Therefore, it can reflect effects depending on an entirely different nature utilizing a specific mechanism and context.</em>
<em>In other words,</em><em> it refers to the act of observation that can influence a particular phenomenon that is being observed.</em>
<em><u>The correct answer is observer effect.</u></em>
 
        
             
        
        
        
Answer: Encoding
Explanation:
Hippocampus is the part situated in limbic system that helps in learning, motivation, regulation etc of thought and information in memory. It transfers the information from short term memory to long term memory.
According to the question, if hippocampus faces any damage then it loses its ability to encode information and thoughts from memory. It cannot create new memories as well as finds difficulty in retaining past memories.
Other options are incorrect because retrieval, transferring and storage are not the major roles played by hippocampus. Thus, the correct option is encoding.