Do not worry.she can look after your per ___.

C look after为动词短语 carefuly是副词（adv.)副词修饰动词
enough（adj./adv./n.)可修饰形容词（adj.）或副词（adv.)但它比较特殊,当他用来修饰形容词或副词时（此处请注意,enough本身就是个形容词/副词/名词,这是个暗难点）,enough后置~