What was the estimated budget for the film "Eraserhead," and how much did it actually make at the box office?

A) Estimated budget: $10,000, Box office: $7 million
B) Estimated budget: $1 million, Box office: $50,000
C) Estimated budget: $500,000, Box office: $10,000
D) Estimated budget: $100,000, Box office: Not released