I think either A or D. I am not very sure but I hope this helps
A caption to describe what is featured in the picture. To explain something about the energy efficiency of the car
Organisers of the very first race report that all but 500 of the 15,000 places have now sold out, just a month after they were first released to the public. For anyone itching to be the very first winner, there are only days left to get your entry in.
1.- report because Organizers is plural.
2.- have because 500 of the 15000 is plural.
3.- They were
4.- I don't see any other verb disagreement.
