/ ?(1) (2) Which of the following is/a...
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/ ?(1) (2) Which of the following is/a...
Explanation:
The given expression "/ /?" is a regular expression pattern. In regular expressions, certain characters have special meanings. Let's break down the given pattern:
- The forward slash ("/") is a special character in regular expressions that is used to escape other special characters. In this case, it is escaping the second forward slash to treat it as a literal character.
- The second forward slash ("/") is also a literal character.
- The question mark ("?") is a special character in regular expressions that denotes the preceding character or group as optional. In this case, it is making the second forward slash optional.
Therefore, the regular expression pattern "/ /?" matches either a single forward slash followed by a space or a single forward slash followed by a space and another forward slash.
Now let's analyze the given options:
a) 1: This option does not match the given pattern as it does not contain any forward slash or space.
b) 2: This option does not match the given pattern as it does not contain any forward slash or space.
c) 1 2: This option matches the given pattern as it contains a single forward slash, a space, and another forward slash.
d) 1 2: This option matches the given pattern as it contains a single forward slash, a space, and another forward slash.
Therefore, the correct answer is option 'C' (1 2) because it matches the given regular expression pattern "/ /?".
In conclusion, the regular expression pattern "/ /?" matches either a single forward slash followed by a space or a single forward slash followed by a space and another forward slash. The correct answer is option 'C' (1 2) as it matches the given pattern.