The given options for this question are a), b), c), and d). We are asked to identify the correct answer among these options. According to the question, the correct answer is option 'C'.

To understand why option 'C' is the correct answer, let's analyze each option one by one:

a)
b)-
c)-
d)

Option 'a' does not provide any specific information. It is incomplete as there is no content following the hyphen.

Option 'b' also does not provide any information. It consists of just a hyphen, which does not convey any meaning.

Option 'd' is similar to options 'a' and 'b'. It does not provide any content after the hyphen, making it incomplete and unclear.

Now let's consider option 'c', which is the correct answer. It consists of a hyphen followed by another hyphen. Although it may seem unusual, this arrangement represents a dash. A dash is a punctuation mark used to indicate a pause or a break in a sentence. It can be used to add emphasis, provide additional information, or set apart a clause. In this case, the double hyphen represents a dash, which is the correct answer.

In summary, among the given options, only option 'c' represents a dash, which is the correct answer. The other options are incomplete or do not convey any meaning.