Which do you need more if in order to increase your reading speed?

You need
better peripheral vision
you need to think faster you can only read as fast as you can think
and you need to see better if you need to stop to fix ur glasses then ur wasting time

An inference that can be made is that the princess is bothered about the tiger door. although there are reasons for both this one has a better reason. the princess is not a monster and even if she didn't want to marry this man she wouldn't want him to die. the grudge of death is pretty heavy. unless she has done this before and feels no regret then she wouldn't want to be married to someone of low quality, if he is low quality.

Not b or c so that leaves you with a or d. a is the better choice.