Answer
c. 22 mm.
Work Step by Step
CRL (mm) GA (wks, days)
1.0 mm 6W1D 42.9
1.5 mm 6W1D 43.3
2.0 mm 6W2D 43.7
2.5 mm 6W2D 44.1
3.0 mm 6W3D 44.5
3.5 mm 6W3D 45.0
4.0 mm 6W3D 45.4
4.5 mm 6W4D 45.8
5.0 mm 6W4D 46.2
5.5 mm 6W5D 46.6
6.0 mm 6W5D 47.0
6.5 mm 6W5D 47.4
7.0 mm 6W6D 47.8
7.5 mm 6W6D 48.2
8.0 mm 7W0D 48.6
8.5 mm 7W0D 49.1
9.0 mm 7W0D 49.5
9.5 mm 7W1D 49.9
10.0 mm 7W1D 50.3
10.5 mm 7W2D 50.7
11.0 mm 7W2D 51.1
11.5 mm 7W3D 51.5
12.0 mm 7W3D 51.9
12.5 mm 7W3D 52.3
13.0 mm 7W4D 52.7
13.5 mm 7W4D 53.2
14.0 mm 7W5D 53.6
14.5 mm 7W5D 54.0
15.0 mm 7W5D 54.4
15.5 mm 7W6D 54.8
16.0 mm 7W6D 55.2
16.5 mm 8W0D 55.6
17.0 mm 8W0D 56.0
17.5 mm 8W0D 56.4
18.0 mm 8W1D 56.8
18.5 mm 8W1D 57.3
19.0 mm 8W2D 57.7
19.5 mm 8W2D 58.1
20.0 mm 8W2D 58.5
20.5 mm 8W3D 58.9
21.0 mm 8W3D 59.3
21.5 mm 8W4D 59.7
22.0 mm 8W4D 60.1 This is the middle of the 8th week.
22.5 mm 8W5D 60.5
23.0 mm 8W5D 60.9
23.5 mm 8W5D 61.4
24.0 mm 8W6D 61.8
24.5 mm 8W6D 62.2
25.0 mm 9W0D 62.6
25.5 mm 9W0D 63.0
26.0 mm 9W0D 63.4
