Answer:
The major difference between hiragana and katakana is the fact that hiragana is primarily used to represent Japanese words, while katakana represents foreign words. Japanese is a language with many borrowed words, and katakana immediately alerts the reader to the fact that the word is an imported one.
Explanation:
关心 would be a better choice
担心 means worry
关心 means like he care for you something like that
The correct answer is b or d