護理師與幼童家長檢視安全規範，下列何者表示對汽車安全座椅有正確認知？
A nurse is reviewing safety protocols with parents of a toddler. Which statement by a parent indicates an understanding of car seat safety?
- AI can buy a used car seat regardless of its history無論其歷史紀錄為何，我都可以購買二手汽車安全座椅
- BMy child should face backward until at least 2 years old✓ 正解我的孩子至少要到兩歲才應該轉向後坐
- CThe car seat should be placed in the front passenger seat汽車安全座椅應放置在右前方乘客座位
- DThe harness should be loose enough to fit two fingers安全束帶應鬆緊適中，剛好能放入兩根手指
汽車安全座椅（Car seat）的安全規範旨在於車禍時最大限度保護幼童。根據美國兒科學會（AAP）指引，後向式（Rear-facing）座椅能提供頸椎與頭部最強大的支撐，幼童應儘量延長後向乘坐時間，至少至 2 歲或達到座椅限制。其他安全重點包括：勿置於氣囊前座、安全帶緊度應僅能塞入一指，且避免使用來源不明或曾發生車禍的二手座椅。
Car seat safety guidelines are intended to maximize protection of young children in motor vehicle crashes. According to the American Academy of Pediatrics (AAP), rear-facing seats provide the strongest support for the cervical spine and head, and children should remain rear-facing as long as possible — at least until age 2 or until they reach the seat's height/weight limit. Other safety points include: never place the seat in front of an active airbag, harness tightness should allow only one finger of space, and used car seats of unknown origin or those involved in a crash should be avoided.