core-bundle/src/Resources/contao/forms/FormCaptcha.php
public function generateQuestion()
	{
		return sprintf('<span id="captcha_text_%s" class="captcha_text%s">%s</span>',
						$this->strId,
						(($this->strClass != '') ? ' ' . $this->strClass : ''),
						$this->getQuestion());
	}
public function generateQuestion()
	{
		return sprintf('<span id="captcha_text_%s" class="captcha_text%s">%s</span>',
						$this->strId,
						(($this->strClass != '') ? ' ' . $this->strClass : ''),
						$this->getQuestion());
	}
Return the captcha question as string

@return string The question markup