Which of the following causes ‚Äö√Ñ√∂‚à ö√ë‚à ö‚à ´milky disease‚Äö√Ñ√∂‚à ö√ë‚à öœÄ of Japanese beetle grubs?$

• A. B.thuringiensis
• B. B.popilliae
• C. B.sphaericus
• D. B.anthracis