C. The correct sentence would be 'It was very embarrassing for me to admit that I didn't know how to tie my shoes'.
<span>"an enormous ornamental bat", because this is a humorous mental image, and
"as the atmospheric conditions demanded", because this is saying that the atmosphere and weather could make it necessary for someone to look a certain way (that's what is meant by putting on airs) rather than to actually stay dry or warm.</span>
