प्रसव के दौरान शोल्डर डिस्टोसिया (कंधे का फंसना) के प्राथमिक प्रबंधन के रूप में निम्नलिखित में से किस प्रसूति पैंतरेबाज़ी (maneuver) का उपयोग किया जाता है?

In a primigravida, engagement of the fetal head typically occurs around:

'Lightening' (descent of the fetal head into the pelvis) in a primigravida typically occurs around which week of pregnancy?

Quickening (the first feeling of fetal movement) is usually felt by a primigravida woman at around how many weeks of gestation?