Final answer:
The correct answer is option a) Be vigilant.
Step-by-step explanation:
Jesus concludes his discussion of the Second Coming with one word of warning - Be vigilant. This means that Jesus advises his followers to be watchful and alert, paying attention to their faith and living in accordance with his teachings.
By emphasizing the importance of vigilance, Jesus is reminding his followers to be prepared for his eventual return and to live their lives in a way that aligns with his teachings, so they will be ready when he comes back.
Being vigilant means actively seeking righteousness, staying true to one's faith, and being aware of the signs and challenges that may arise. It is a call to remain steadfast and focused, always striving to live a moral and faithful life.