The word, 'installed', is the past tense of the verb, 'install' which means 'place or fix (equipment or machinery) in position ready for use'. The word, ' established ', is the past tense of the verb, 'establish' which means 'to start something which will continue for a long time'. It also means, ' to install or settle in a position, place, business, etc'. For example : 'To establish oneself in business' is the same as 'to install oneself in a business'. Hence, option B is closest in meaning to the given word.
The word, 'prepared', is the past tense of the verb, 'prepare' which means ' make (something) ready for use'. 'Prepare' does not mean the same as 'install' as something which is prepared at a particular place can be moved to another place and be installed and kept ready for use. Hence, option A is incorrect.
The word, 'refused', is the past tense of the verb, 'refuse' which means 'to deny permission to do something'. As the meanings are different, option C is incorrect.
The word, 'manufactured', is the past tense of the verb, 'manufacture' which means ' make (something) on a large scale using machinery'. A machinery which is 'manufactured' in a factory can be 'installed' in a different location for it to be used. The two words are different in meaning and hence, option D is incorrect.