instruction:
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". 
question:
[header] How to recognize symptoms of sickle cell disease (scd ) [title] Get tested. [step] Sickle cell disease can be detected with a simple blood test, so if you think you may have the disease, see a doctor to get tested right away. In the united states, all newborns are required to be screened for sickle cell disease. <sep> (A) [substeps] The screening process is lengthy and requires some paperwork so a doctor can make sure they're perfect. In order to receive diagnosis or treatment, the doctor must first perform a screening test. (B) The more advanced the developing disease, the more likely it is that you may have sickle cell disease. It is a serious disease that causes weight gain, and may affect when you are pregnant. (C) The centers for disease control and prevention (cdc) website has more information on the disease than it does on its own. [title] Be aware of your potential risk factors. (D) This is because early treatment is very beneficial to patients. [substeps] It is also possible to do prenatal screening for sickle cell disease by testing fetal tissues that are collected by chorionic villus sampling or amniocentesis.
answer:
D


question:
A man is pushing a lawn mower through the grass. A child is standing next to him pushing a toy lawn mower. they <sep> (A) speed past a car in the street. (B) pass other kids on the lawn mower. (C) move up and down the lawn on the mower. (D) give each other a high five.
answer:
D


question:
[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.
answer:

C