When Hitler sent troops into the Rhineland in 1936 and Austria in 1938, other European nations "offered no resistance."
This is evident because it was not until September 1939 before Britain and France declared war against Nazi Germany.
Both Britain and France declared war on Nazi Germany because Hitler invaded Poland on August 30th, 1939.
However, the British and French had agreed with Poland to give them military support when the need arose.
Hence, in this case, it is concluded that the correct answer is option C. "offered no resistance."
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