Mixed bag lightning

Three-second gut check on each snippet:

A) 8=FIX.4.4|9=40|35=0|49=A|56=B|34=7|52=…|10=091|
B) 35=0|49=A|56=B (no 8=, no 10=)
C) HTTP/1.1 200 OK
D) 8=FIX.4.4|9=200|35=D|11=X|55=EUR/USD|54=1|38=1|10=…|

	FIX?
A	Yes — full header + heartbeat
B	No — truncated, not a frame
C	No — HTTP
D	Yes — NOS with checksum

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