”…….in my rate” means?

Read the extract and answer the question

You cram these words into mine ears against
The stomach of my sense. Would I had never
Married my daughter there! For, coming thence,
My son is lost, and, in my rate, she too,

(Act II, Scene One, lines 99 – 102)

A. I’m very certain
B. so far as I can see
C. there’s no doubt
D. as it appears

Correct Answer:

Option B – so far as I can see