The above scripture indicates a couple of things: 1st, that every spirit of man was innocent in the beginning. In other words, each and every person, when first begotten in the spirit, was innocent before God. 2nd, It says that man became AGAIN, in their infant state(infant in mortality) innocent before God. 3rd, In order for someone to be innocent in the beginning, and then to become innocent AGAIN, it would imply that they would have to have lost their perfect innocence between these two births. This leaves me to reason that yes, there was indeed the possibility of sin or choosing contrary to the Lord's will in pre-mortal times. Now we know that Christ never has sinned, ever, not here in mortality, not in pre-mortal life. If he had sinned, the plan of salvation would have been frustrated and he would not have been able to perform the atonement. The follow excerpt from JOD illustrates Christ's perfection before this life. So, with that in mind, this leaves me to wonder... If Christ was born in the spirit of the Same father that you and i were born of, why was it that he was able to remain perfect and without blemish in pre-mortal times when others, Christ's literal brothers and sisters, were prone to sin and error? Think about this, and feedback is always appreciated. Although we were all perfect from "the begining" we know that we had a space of time to make choices and decisions in the pre earth life. Although we could not sin, we could use our agency to choose how to act and what to say, etc. Christ used his agency to PERFECTLY magnafy the will of the father and choose PERFECTLY how to use his agency. How did he do it? I dont know. But we all have the same ability we can choose to PERFECTLY follow christ, its laid out for us, we just usually dont! My humble opinion of course!