I would say the answer is 4
So that the reader can under stand the way the weighted is explaning
1. Is evaluation to “was what the writer said worthwhile?”
2. Is Interpretation to “what does the writer say?”
3. Is Analysis to “How does the writer say it?”
The Congress, of course, must rightly keep itself informed at all times of the progress of the program. However, there is certain information, as the Congress itself will readily recognize, which, in the interests of our own security and those of the nations that we are supporting, must of needs be kept in confidence.
" I"
"I got a flat tire" is the main clause, and "i" is the subject.