What is "Terminal High Altitude Area Defense (THAAD)", sometimes seen in the news?

Which one of the following statements best reflects the idea behind the "Fractional Orbital Bombardment System" often talked about in media?

Consider the following statements: 1. Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight. 2. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile. Which of the statements given above is/are correct?

Consider the following aircraft: 1. Rafael 2. MiG-29 3. Tejas MK-1. How many of the above are considered fifth generation fighter aircraft?