The two main reasons why Douglass opposed John Brown in his plan to raid Harpers ferry is because first he was sure that the plan would fail and thus it would lead to many black deaths. The second reason is that Douglas thought that this plan would hurt the abolition movement due to a backlash.
I believe the answer is B
A major consequence of invisible trade is that eventually the amount of invisibilities will exceed the payments for them. This means that the goods and services provided will be given, but payment for them is often neglected. This leads to a devastating deficit in funds. So the person or business supplying the goods can be in ruin, along with the person or business owing the money. This could threaten the economic strength of Texas.
He ends up back at the starting point because if he walks the same steps forwards and backwards he would be in the same spot