Please answer the following question: Read the following article and select the best answer. Article: For the first time in Singapore, it's snowing. Visitors to Singapore will be amazed by the technology that brings winter to you on this tropical island. All visitors can have cool winter fun in Snow City, Singapore's first indoor snow center. Visitors can see and touch snow falling. Of course, it's more than just touching and feeling snow. You can enjoy exciting snow rides or skiing on snowboard. You can also build your own real snowman and have snowball fights filled with fun and learn about life in cold climates. Snow City is about family-based fun and is suitable for all ages. Join us and step into Snow City today. How to get there: 21Jurong Town Hall Road, Snow City Building, Singapore 609433 Tel: 63371511 Bus services: No. 66, No. 178, No.198 Price: Adults: $18; Children: $12 Opening Hours: Tuesday--Sunday: 10:30 am--6:30 pm Notice: No phone booking. For updated information, please visit our website www.snowcity.com.sg. Question: Bob and his 5-year-old daughter want to visit Snow City. They should prepare _ for the tickets. - $30 - $18 - $12 - 24
A:
$30