mnemonicsloth, thank you for the response I appreciate the time and effort that went into writing it. Both (a), (b), and (c) have been incorrectly dismissed.

(a) does not beg the question, we can see this is so if we more obviously differentiate between productive-society and productive-people; I don't understand why you confused the issue by opting for the same word. So the argument becomes:

1. A productive-society is one with productive-people.// 2. Productive-people are attained through people practicing.// 3. So, a productive-society is attained through people practicing.//

We can make this even more clear by exchanging 'productive people' for 'talented people':

1. A productive society is one with talented people.// 2. Talented people are made through practice.// 3. So, a productive society is made through practice.//

(b) does not beg the question, it is easy to equate 'Having practiced a lot' and 'Practicing a lot' given the impression of circularity. We can simplify the argument to make it clearer (also your first premise is v. unclear). Instead:

1. A productive society is one in which everyone is practiced.// 2. Being practiced requires 100,000h of practice.// 3. A productive society is one in which everyone has had 100,000 of practice.//

(c), being a tautology does not invalidate an argument.

Being a logic student I love all this, awaiting your reply.