Fill in the blank with the correct word from the options given below to make a meaningful sentence:-

Ten tourists we ______________ injured in the accident and a few of them succumbed to their injuries on the way to the hospital.

The correct option is gravely.

Step-by-Step Explanation:

To determine the correct word for the blank, let us analyze the meaning of the sentence and the options provided.

The sentence is: "Ten tourists we [were] ______________ injured in the accident and a few of them succumbed to their injuries on the way to the hospital."

Let's look at the definitions of the options:

1. Spuriously: In a false or fake manner. This does not fit the context of being injured in an accident.
2. Gravely: Seriously, severely, or in a way that causes dread or alarm. When someone is "gravely injured," it means their injuries are very serious and potentially life-threatening. This matches the latter half of the sentence, which mentions that some of the tourists "succumbed to their injuries" (died).
3. Fatefully: Controlled by or having significant consequences for fate or destiny. While the accident is unfortunate, "fatefully injured" is not a standard colocation for describing severe physical harm in this context.
4. Vitally: In a way that is essential or necessary for life. "Vitally injured" is grammatically incorrect and contradictory in this context.

Therefore, the adverb gravely is the most appropriate word to describe the severity of the injuries that led to some tourists succumbing to them.