Blank 1 is C because his work is not easily understood, so in the past, his work was difficult to interpret. For blank 3, why can’t we draw this contrast and say that his work was impenetrable then but now it is pellucid? However, Greg is drawing a contrast between his publishing a little in the past vs a lot now.
There is also no evidence that he wrote a little in the past, the only evidence is that his books were dogmatic.
Gregs answers are C, D, H
