肌萎缩性侧索硬化()

A．多在40岁以后起病，男多于女

B．首发症状常为手指不灵活和力弱

C．双上肢可同时受累也可前后相隔数月

D．少数患者从下肢起病，延及上肢

E．无麻木感，痛感

Referring to the elderly as summarized in the passage, we can assume that they are ______.

A．great in number and most will vote

B．great in number but few tend to vote

C．few in number and few tend to vote

D．few in number but most will vote