500m from this sign, are drivers allowed to honk?

500m from where this sign is located, are drivers allowed to honk?

• A

  Have

• B

  Are not

  According to the National Technical Regulation on Road Signs QCVN 41:2019, additional signs are often placed in combination with main signs to explain and supplement for better understanding. This sign is rectangular or square in shape, placed right below the main sign.
  The "no horn" sign (symbol P.128) is accompanied by the S.501 "area of ​​effect of the sign" sign right below.
  License plate S.501 prohibits vehicles from using horns when traveling within 500m of the sign.

Japanese

Source: https://vtcnews.vn/chieu-dai-doan-duong-500m-tu-noi-dat-bien-nay-tai-xe-co-duoc-bam-coi-ar858604.html