For your question i think its B
A step-dame (stepmother) and dowager (widow holding property for her deceased husband) would make their son (or stepson) wait until they die to inherit all of the land or money.
Theseus is saying that he is tired of waiting for his wedding day to Hippolyta, comparing himself to that 'young man' waiting for his dowager or stepdame to die because to him, Hippolyta is a great fortune.
I believe that the first sentence is properly punctuated. What is wrong with the second and third sentence is that there is no comma before the dialogue, and the "Some" in the second sentence should not be capitalized. A comma should always be used before dialogue, and the word should only be capitalized unless it's at the beginning of the sentence. In the third sentence, the "that" should not be included in the dialogue.