Select whichever preposition or determiner you consider the most appropriate for the blank space.
There is a mark ____________ the wall.

Correct option is A

The word that can be filled in the blank is ‘on’ to make the sentence grammatically and contextually correct.
• ‘On’ is used to indicate a position for surfaces or a place where something is attached.
• As per the context, the word ‘on’ fits very well & hence, it is the correct option.
Meanings of other given words:
• By - used to show the means of achieving something.
• Into - used to indicate movement toward or into something.
• From - used to indicate the point in space or time at which something starts.
• Thus, all the other given words have different meanings and do not fit in the context of the sentence.