Ahmed had a stroke· . now , when he is shown two· items at the same time· , he can only see· one of them at a time· , but he can switch· back and forth· between them . he might be· suffering from

Ahmed may be suffering from simultanagnosia. This means he can only focus on one object at a time.

The appointment of many officials, including the Supreme Court justices, but also others, happens by the president - this is the correct answer.

The Senate has to approve of the candidates though - this function of the Senate is called the Advice and Consent function.