B1

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 64 64"
>
    <path
        d="M43.19 32a10.644 10.644 0 0 0 10.62-10.63c0-5.53-8.86-15.87-9.87-17.03a1.045 1.045 0 0 0-1.51 0c-2.222 2.448-10.143 12.553-9.87 17.03A10.637 10.637 0 0 0 43.19 32zm-4.33-11.58a5.594 5.594 0 0 0 3.38-3.37.997.997 0 0 1 1.89 0 5.425 5.425 0 0 0 3.38 3.37 1.01 1.01 0 0 1 0 1.9 5.42 5.42 0 0 0-3.38 3.37.997.997 0 0 1-1.89 0 5.506 5.506 0 0 0-1.3-2.08 5.334 5.334 0 0 0-2.08-1.29 1.015 1.015 0 0 1 0-1.9z"
    />
    <path
        d="M48.74 32.71c-8.09 4.19-18.383-2.215-18.18-11.34-.241-2.679 2.748-8.464 5.46-12.06-2.36-2.99-4.05-4.94-4.08-4.97a1.016 1.016 0 0 0-1.51 0C29.6 5.29 10.19 27.71 10.19 39c1.15 27.852 40.842 27.858 42 0a19.652 19.652 0 0 0-1.79-7.27 12.285 12.285 0 0 1-1.66.98zM33.19 39a2.965 2.965 0 0 1-.77 2c.99.9.751 2.787.77 4a3.009 3.009 0 0 1-3 3h-6a.997.997 0 0 1-1-1V35a.997.997 0 0 1 1-1h6a3.009 3.009 0 0 1 3 3zm6 8a1 1 0 0 1-2 0v-6.38l-.56.27a.995.995 0 0 1-.89-1.78l2-1a1.006 1.006 0 0 1 1.45.89z"
    />
    <path
        d="M30.19 42h-5v4h5a1.003 1.003 0 0 0 1-1v-2a1.003 1.003 0 0 0-1-1zM30.19 36h-5v4h5a1.003 1.003 0 0 0 1-1v-2a1.003 1.003 0 0 0-1-1zM43.19 23.19c2.207-2.838 2.204-.804 0-3.64-2.218 2.817-2.215.824 0 3.64z"
    />
</svg>