On a word-choice question where all four options are grammatical, what decides the answer?

Precision: the word whose denotation and connotation exactly fit the context

What is wrong with 'The two runners finished at the same time simultaneously'?

It is redundant: 'simultaneously' and 'at the same time' mean the same thing

The shortest option that preserves the full meaning

increase, matching the formal, neutral register

Read the surrounding diction to gauge whether the passage is formal, neutral, or conversational, then match it

resolute, a positive word matching the supporters' praise

Moreover, an additive transition

The emotional or evaluative feeling a word carries beyond its literal meaning

12questions. Pick an answer and you'll see why right away.

On a word-choice question where all four options are grammatical, what decides the answer?
What is wrong with 'The two runners finished at the same time simultaneously'?
Which is the concise equivalent of 'due to the fact that'?
When options are grammatical and mean the same thing but differ in length, which is usually correct?
In a formal economics passage, which fits best: 'The tariffs will ___ the cost of imports'?
How do you find the right register for a word on the ACT?
Which is the standard American idiom?
Which preposition is idiomatic: 'The success of the project depends ___ careful planning'?
Given 'Critics called her inflexible, but supporters praised her ___ stance', which word fits?
Two sentences both list benefits of a plan. Which transition connects them?
What is connotation?
Tighten 'She has the ability to solve problems in a quick manner'.