The exec_stmt_ssl is written in . . . . . . . .

This question asks about the programming language used to write the exec_stmt_ssl component in MySQL.

Let's break it down:

* exec_stmt_ssl is part of MySQL, a popular database management system.
* It handles the execution of prepared statements over a secure connection using SSL (Secure Sockets Layer).
* Programming languages are used to create software like MySQL.

Now, let's look at the options:

* C++ is a powerful programming language commonly used for system-level tasks.
* C is another popular language, known for its efficiency and direct control over hardware.
* Python is known for its simplicity and readability, often used for scripting and web development.
* Perl is a scripting language, often used for text manipulation and system administration.

Considering that MySQL is a system-level software, C++ or C are more likely choices for writing components like exec_stmt_ssl.

Therefore, the answer is most likely either Option A (C++) or Option B (C). The exact language used may depend on specific internal implementations within MySQL.