@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		MultipleChoiceQuestion other = (MultipleChoiceQuestion) obj;
		if (answer != other.answer)
			return false;
		if (options == null) {
			if (other.options != null)
				return false;
		} else if (!options.equals(other.options))
			return false;
		if (!question.equals(other.question))
			return false;
		return true;
	}