Diode Circuit Analysis Problem 2
To solve this, start by considering only the two peak input voltage cases.  Once you know what happens at each of the AC waveform peaks, you have a pretty good idea what happens for the rest of the waveform.

Draw out the circuit separately for each peak.  Substitute either a short or open for each diode, depending on whether it will be forward or reverse biased.  Note that all that will be left is the input voltage, some resistors, and the output voltage.  The output voltage should be obvious from inspection in each case.

Given the multiple-choice answers, choose the answer that matches what you get at the two peaks.  Note that all 4 choices differ in the peak results, so there should be no ambiguity.