Identify the security vulnerability in the following example?

Identify the security vulnerability in the following example:

<code>
1 <?php
2 mail(‘feedback@example.org’,
3 ‘Feddback’,
4 ‘Here is my feedback.’,
5 “From: {$_COOKIE[’email’]}”);
6 ?>
</code>

A.
Remote Code Injection

B.
Cross-Site Request Forgeries

C.
Email Injection

D.
None of the above