Final answer:
TEVYE asks Tzeitel if she is happy with the blessing because a) he wants to gauge her feelings about the arranged marriage, which ties into the theme of tradition versus personal happiness.
Step-by-step explanation:
In the dialogue of 'Fiddler on the Roof,' TEVYE asks Tzeitel if she is happy with the blessing because he wants to ensure her contentment and happiness after an arranged match is made for her. The blessing is significant within the context of the story, representing consent and goodwill for future marriage.
TEVYE's concern and care are clear as he engages in this tender father-daughter exchange. He wants to know about her feelings, marking option a) He wants her to express her feelings as the most likely reason for his inquiry. This dialogue exemplifies the themes of tradition versus personal happiness and choice.