What features make the auto industry an attractive or unattractive industry to enter?

a Unattractive, because of high barriers to entry, high rivalry, and high buyer power.

b Unattractive, because of mature learning curves and low profitability.

c Attractive, because of the ease of which the industry can be disrupted from the low end.

d Attractive, because of the ease with which the industry can be disrupted from the high end.