LTW Umpire Call (9)

An umpire call send to me by Philippe Gomez. He wrote in his mail:

Attached a situation witch occurred during training with some good sailors. Nobody agreed on the decision

Yellow, inside right leeward at the zone
Blue is faster, breaks the overlap and is able to gybe in front (position 2,3)
Yellow touches the mark on her own in pos 3, then bears off sharply and collision occurs with Blue (pos 4),
The U are satisfied that touching the mark was not due to Blue not giving room;
The U are satisfied that there was not  room enough for Yellow to round in pos 4;

There's a Yankee flag on both boats. What is your decision?

• answer 1: display blue flag AND yellow and red flag
• answer 2: display ONLY yellow and red, because its the same rounding incident
• answer 3: display the net result of double penalty for Blue and single for yellow,  ie: blue flag in absence of outstanding penalties
• answer 4; display only yellow and exonerate Blue if it was impossible for Yellow to catch Blue without pushing the mark.

I'll refrain from commenting until a few of yours are in.