Answer:
Positive economics is an objective stream of economics that relies on facts or what is happening.
Explanation:
<span>The best opening sentence for such a business/informal letter is B. Your order of February 10 arrived in our office today. This is the only sentence that doesn't sound too formal and use a bunch of fancy words in order to make it seem more formal, which is the reason why it is the least formal, in this case and thus the correct answer.</span>
Date: 13-5-2021
Dear friend ,
Hi! Iam fine here hope you are also fine there. how is your days going now as there is lockdown, and I’m a bit scared anyway... How are they going. Are you having any online classes??.. Well today in this letter I just wanted to share my experience of lockdown with you.
I am very bored during lockdown. Our area is in red zone . So as you know we should not go outside. But it’s a bit scary because the person actually has a gun and it’s very frightening I know your think I should be writing to my parents instead of you but I already did. I just wanted to share this with you and I don’t know if this will be my last time writing to you or not but I just wanted to say I hope you are ok and feeling great have a nice one ♥️