Holding entries and procedure turns are are designated in order to keep you in protected
airspace. As stated above, holding entries are recommended in the AIM, and I can't really see a teardrop vs. parallel entry when on that dividing line with a choice between the two a failing item. I can see the DPE getting a little upset if you did a 90-270 entry, however if you made the turn inside protected airspace, is it a failing item?