Which syllable type is likely to end with a vowel sound that is "long"?

The open syllable is characterized by ending in a vowel sound that is typically long. This occurs because, in an open syllable, the vowel is not followed by a consonant, allowing it to be pronounced with its long sound. For example, in the word "she," the "she" is an open syllable where the vowel 'e' is pronounced as a long vowel sound.

In contrast, a closed syllable contains a vowel followed by one or more consonants, which "closes" off the syllable and typically leads to a short vowel sound, as seen in words like "cat." The silent e syllable can lead to a long vowel sound as well, but it does so by manipulating the following vowel through the presence of a silent 'e' at the end, as in "time." An r-controlled syllable, on the other hand, modifies the vowel sound due to the influence of the 'r' following it, as in "car," resulting in neither a distinctly short nor a long vowel sound but rather a modified one influenced by the 'r'.

Therefore, the open syllable stands out as the type that consistently ends with a long vowel sound, making it the correct answer.