Correct : d

Option a: Mostly
"We reached the station late, and mostly missed the train."
This doesn't make proper sense. "Mostly" means "for the most part" or "mainly," which doesn't fit well in this context.

Option b: Near
"We reached the station late, and near missed the train."
This is grammatically incorrect. "Near" is not the right form here.

Option c: Utterly
"We reached the station late, and utterly missed the train."
"Utterly" means "completely" or "absolutely." While grammatically possible, it sounds unnatural in this context.

Option d: Nearly
"We reached the station late, and nearly missed the train."
This is correct! "Nearly" means "almost" - so they almost missed the train but didn't actually miss it. This makes perfect sense with the context.