Complex sentence: It took the form of a letter, in which President Suharto enclosed a transcript of his two speeches, which he requested be passed on to the those who had asked the questions as his response.
Split into simpler sentences: It took the form of a letter, in which President Suharto enclosed a transcript of his two speeches. He requested they be passed on to the people who had asked the questions, saying that these transcripts constituted his response.