This is D., a hyphen. I You would write it as 'old-fashioned'. There would only not be a hyphen if it was 'old fashion' without the 'ed' at the end.
Answer:
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Many people feel like insecure and they belittle themselves and I want to thank you for reminding people that we're all good at something. Your words had a great impact on me especially since I feel like I'm the worst at math :)
(I am People Smart, Self Smart, Nature Smart, and Word Smart)
I would go with B. "parlor generals and field deserters"
The answer is B.) its. "The committee" is a singular subject, which means its pronoun must also be singular. The pronoun "it's" can be written as "it is", which does not fit in this case. So, the answer is "its".