Payoff with Long position

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Identify the trading strategy that will generate the payoffs of taking a long position in a call option within a single-period binomial framework.
  1. Buy h = (c+ + c–)/(S+ + S–) units of the underlying and financing of –PV(–hS– + c–)
  2. Buy h = (c+ – c–)/(S+ – S–) units of the underlying and financing of –PV(–hS– + c–)
  3. Short sell h = (c+ – c–)/(S+ – S–) units of the underlying and financing of +PV(–hS– + c– )
The answer says at time 0 Buy -C and Buy -hS… should he be writing hS ( to hedge against the buy)?
Pg 382
 
Ques is asking us to replicate the pay off of a long call position. We would need to buy a share to replicate long call position and finance it with borrowing. If ques would have ask us to calculate arbitrage profit, what you r saying would have been right. Hope this helps.
 
I came across this example as well (Example 1 page 382 Long Call Option Replicated with Underlying and Financing) and I am still trying to get my head around this concept.
It appears answer A and B are identical.
I believe what is being asked in my own words “What response below is the equivalent to buying a call option?”
  1. Buy h = (c+ + c–)/(S+ + S–) units of the underlying and financing of –PV(–hS– + c–)
  2. Buy h = (c+ – c–)/(S+ – S–) units of the underlying and financing of –PV(–hS– + c–)
  3. Short sell h = (c+ – c–)/(S+ – S–) units of the underlying and financing of +PV(–hS– + c– )
More or less just trying to talk this one through and see if I can better understand.
 
What is the difference between response A and B in the above question?
 
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