The correct answer is: C. Both Syntactic & Semantic distinction
Prior probability sentences are sentences that express a belief about the likelihood of an event occurring. The dependence of experience is reflected in prior probability sentences in both the syntax and the semantics of the sentence.
Syntactically, prior probability sentences often contain modal verbs, such as “must” or “should.” These modal verbs indicate that the speaker is expressing a belief about what is likely to happen, rather than what is certain to happen.
Semantically, prior probability sentences often contain terms that express uncertainty, such as “probably” or “likely.” These terms indicate that the speaker is not certain about the likelihood of the event occurring, but is expressing a belief based on their experience.
For example, the sentence “It is likely that it will rain tomorrow” expresses a belief that it is more likely than not that it will rain tomorrow. This belief is based on the speaker’s experience of the weather in the past.
The sentence “It must be raining outside” expresses a belief that it is certain that it is raining outside. This belief is based on the speaker’s experience of the weather in the past, as well as their current observations of the environment.
In conclusion, the dependence of experience is reflected in prior probability sentences in both the syntax and the semantics of the sentence.