Azulejos, mosaics made of glazed ceramic tiles, can be found throughout Portugal These mosaics beautify places such as __ stations, and public squares. Which choice completes the text so that it conforms to the conventions of Standard English? A. libraries train B. libraries: train C. libraries-train D. libraries, train

## Step 1<br />The problem is a test of punctuation in English grammar. The sentence is listing places where Azulejos can be found, such as stations and public squares. The correct punctuation should allow for a clear separation of these items in the list.<br /><br />## Step 2<br />Option A uses a space to separate 'libraries' and 'train', which is not a proper way to separate items in a list.<br /><br />## Step 3<br />Option B uses a colon, which is typically used to introduce a list, a quote, or an explanation. In this case, it doesn't fit the context of the sentence.<br /><br />## Step 4<br />Option C uses a hyphen, which is used to join words together, not to separate them.<br /><br />## Step 5<br />Option D uses a comma, which is the correct punctuation to use when listing items in a sentence. The comma provides a clear separation between 'libraries' and 'train', making the sentence easy to read and understand.