社会主义民主政治的本质和核心是（）。

A．人民当家做主

B．无产阶级专政

C．全体人民享有管理政治的权力

D．生产资料公有制

Suppose a foreign friend of yours has written to inquire about the possibility of making a seven-day visit in China. Write a reply to give him some information. The following should be included:
(1) The place you recommend for him to visit and the reasons ;
(2) The suggested route and the timetable of the visit;
(3) Some advice on how he should prepare for the visit;
(4) Your arrangement for his visit to Beijing.