Given the task definition and input, reply with output. In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to visit philadelphia [title] Choose the right time of year to visit philadelphia. [step] Because philadelphia is located in the northeastern u.s., it experiences four distinct seasons. The winter is usually cold and snowy, while the summer can be hot and humid. <sep> (A) [substeps] If you're planning to visit philadelphia in the summer, during the winter time, you should plan on visiting philadelphia between march and october. Then, you can visit philadelphia from december to october, while december is warmer and wetter. (B) However, if you're visiting philadelphia from october 1st until october 6th, the temperature will be well above freezing, at least until saturday nights in philadelphia, in which time of year is known. [substeps] Philadelphia is a multi-branch city with tons of downtown and downtown activities, requiring plenty of time to make reservations at virtually any restaurant in that area. (C) As a result, the best time to visit the city is usually march through may when the weather is mild and hotel prices are moderate. [substeps] If you're on a budget, hotel rates are usually lowest in the fall and winter, making september through february the cheapest time to visit philadelphia. (D) [title] Pack your overnight bags ahead of time. [step] All of the different factors involved in deciding on a hotel will affect whether you book at the same time.
C