Question

please answer this asps​

Answer 1

Answer:

None of this

Step-by-step explanation:

a+b+c:b+c+d:c+d+a:d+a+b=6:7:8:9

Now,

We will cancel

After cancellation

a:d:c:b=6:7:8:9

Now,

we will arrange the order

a:b:c:d=6:9:8:7

And in option

This option is not given

so ,

None of this