old_contents: import React from 'react';
  import PropTypes from 'prop-types';
  import classNames from 'classnames';
  import css from './Alternative.css';
  
  const Alternative = ({ disabled, id, text, selected, onClick }) => {
    const alternativeClass = classNames(css.alternative, {
      [css.selected]: selected,
      [css.disabled]: disabled,
    });
    return (
      <div className={alternativeClass} key={id}>
        <label>
          <input
            disabled={disabled}
            type="radio"
            name="vote"
            value={id}
            id={id}
            onClick={onClick}
          />
          {text}
        </label>
        <span
            id="checked"
            />
      </div>
    );
  };
  
  Alternative.defaultProps = {
    onClick: undefined,
    selected: false,
    disabled: false,
  };
  
  Alternative.propTypes = {
    disabled: PropTypes.bool,
    id: PropTypes.string.isRequired,
    onClick: PropTypes.func,
    text: PropTypes.string.isRequired,
    selected: PropTypes.bool,
  };
  
  export default Alternative;
  
new_contents: import React from 'react';
  import PropTypes from 'prop-types';
  import classNames from 'classnames';
  import css from './Alternative.css';
  
  const Alternative = ({ disabled, id, text, selected, onClick }) => {
    const alternativeClass = classNames(css.alternative, {
      [css.selected]: selected,
      [css.disabled]: disabled,
    });
    return (
      <div className={alternativeClass} key={id}>
        <label>
          <input
            disabled={disabled}
            type="radio"
            name="vote"
            value={id}
            id={id}
            onClick={onClick}
          />
          {text}
        </label>
        <span
          id="checked"
        />
      </div>
    );
  };
  
  Alternative.defaultProps = {
    onClick: undefined,
    selected: false,
    disabled: false,
  };
  
  Alternative.propTypes = {
    disabled: PropTypes.bool,
    id: PropTypes.string.isRequired,
    onClick: PropTypes.func,
    text: PropTypes.string.isRequired,
    selected: PropTypes.bool,
  };
  
  export default Alternative;
  
subject: Fix indentation