Multiple choice technology web technology

For which one of the following reasons would a builder use StringBuilder over string?

  1. Due to its nature as a reference type, StringBuilder has a smaller footprint than string,thereby allowing more efficent memory management.

  2. StringBuilder is inherently more efficent due to its nature as a reference type comparedto string, which is a value type

  3. StringBuilder allows for dynamic appending of types; string creates a new string every time it is appended to.

  4. StringBuilder has the ability to accept objects other than string in order to build a string by automatically calling the ToString method on the object.

  5. Regular expressions are built into StringBuilder, allowing for much more efficent text processing than what could usually be achieved by using a string.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

StringBuilder is mutable and efficient for multiple string modifications. Each string append creates a new string object in memory (strings are immutable), while StringBuilder modifies the same buffer internally, reducing memory allocations and garbage collection pressure. Options A and B incorrectly claim string is a value type (it's a reference type).

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